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Info request- 6.5 Grendel loading
#6209984
03/04/16 11:12 PM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
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Joined: Jul 2012
Posts: 604 |
Does anyone have any information on loading the 6.5 grendel with Hornady 120 GMX # 26110 ? I did a search on ammo guide and found nothing useful.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210005
03/04/16 11:24 PM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
Here's you some QL results. Please remember this is NOT published data, but it will give you some kind of idea what powders you might try and what results you might expect. Guidelines... Cartridge : 6.5 Grendel (SAAMI)
Bullet : .264, 120, Hornady GMX 26110
Useable Case Capaci: 29.961 grain H2O = 1.945 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 20.0 inch = 508.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 52000 psi, or 358 MPa
or a maximum loading ratio or filling of 112 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
51 loads produced a Loading Ratio below user-defined minimum of 86%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant Reloder-17 103.9 30.1 1.95 2509 95.3 52000 8218 1.067
Accurate 4350 108.8 30.0 1.95 2461 93.0 52000 7863 1.081
Vihtavuori N550 105.5 29.8 1.93 2459 92.9 52000 7898 1.067
Norma URP 108.7 29.7 1.92 2459 92.9 52000 7812 1.082
IMR 3031 97.7 25.2 1.63 2459 99.9 52000 7095 1.070
Hodgdon CFE223 92.5 28.4 1.84 2457 95.7 52000 7625 1.065
Ramshot Hunter 108.8 31.0 2.01 2449 89.9 52000 7845 1.080
Ramshot Big Game 98.0 28.8 1.87 2448 94.8 52000 7576 1.066
Winchester 748 90.2 26.8 1.74 2444 97.7 52000 7347 1.071
Alliant AR-Comp 93.0 24.8 1.61 2442 100.0 52000 6489 1.071
Winchester 760 102.9 30.1 1.95 2441 88.8 52000 7759 1.083
Hodgdon H414 102.9 30.1 1.95 2441 88.8 52000 7759 1.083
Hodgdon Hybrid 100V 111.5 29.8 1.93 2438 95.2 52000 7410 1.083
Hodgdon BL-C2 92.5 27.9 1.81 2434 96.6 52000 7521 1.081
IMR 4895 96.6 26.7 1.73 2428 95.3 52000 7563 1.084
Norma 203 old 99.8 27.9 1.81 2422 96.2 52000 7501 1.088
Norma 203B 97.9 27.0 1.75 2418 95.2 52000 7472 1.086
Alliant Reloder-26 112.0 33.3 2.15 2415 87.8 46898 8447 1.103
IMR 4320 99.7 27.1 1.75 2414 94.9 52000 7215 1.071
Accurate 4064 99.2 26.8 1.74 2414 99.1 52000 7240 1.126
Alliant Reloder-15 97.4 26.9 1.74 2413 94.4 52000 7459 1.087
Accurate 2520 92.3 26.9 1.74 2412 98.3 52000 7185 1.091
Ramshot Wild Boar 92.5 27.3 1.77 2410 95.1 52000 7337 1.083
Hodgdon H4895 93.7 25.9 1.68 2407 96.0 52000 7334 1.090
Accurate 2495 92.9 25.1 1.63 2406 100.0 52000 6940 1.106
Vihtavuori N540 96.8 27.0 1.75 2403 98.8 52000 7113 1.090
Hodgdon H322 90.2 24.2 1.57 2401 99.5 52000 6791 1.086
Norma 202 94.4 25.7 1.66 2398 98.9 52000 6991 1.093
Vihtavuori N135 103.3 25.9 1.68 2396 99.9 52000 6630 1.090
IMR 4831 112.0 29.6 1.92 2394 92.2 48881 7525 1.113
Alliant Reloder-19 112.0 30.9 2.00 2392 84.8 50648 7549 1.095
Vihtavuori N150 107.4 28.0 1.81 2391 97.2 52000 7043 1.086
Hodgdon H380 98.9 27.9 1.81 2391 92.4 52000 7394 1.092
Norma 204 106.9 30.5 1.98 2390 85.0 52000 7388 1.089
Vihtavuori N530 90.3 25.1 1.62 2388 96.9 52000 7071 1.092
Hodgdon VARGET 99.7 26.6 1.73 2382 94.2 52000 7116 1.087
Vihtavuori N140 96.7 26.2 1.70 2382 99.1 52000 6742 1.091
Norma MRP 112.0 32.3 2.09 2382 84.3 46911 8006 1.111
IMR 8208 XBR 92.2 25.5 1.65 2381 96.7 52000 6990 1.094
Norma 201 95.3 25.8 1.67 2378 96.9 52000 7109 1.105
IMR 4350 107.6 29.6 1.92 2376 87.9 52000 7170 1.080
Hodgdon H4350 109.6 29.6 1.92 2376 87.7 52000 7170 1.080
Alliant Reloder-12 89.9 25.3 1.64 2372 99.5 52000 6626 1.095
Accurate 2460 88.1 26.2 1.70 2371 97.7 52000 6946 1.106
IMR 4064 100.3 26.2 1.70 2371 94.5 52000 7011 1.093
Alliant Reloder-10x 87.3 22.8 1.47 2370 100.0 52000 6343 1.105
Ramshot TAC 92.0 27.4 1.78 2362 91.7 52000 7124 1.098
Ramshot X-Terminator 89.7 26.5 1.71 2361 95.1 52000 6958 1.101
Accurate 2230 87.9 26.3 1.70 2358 96.0 52000 6885 1.103
Accurate 2015 90.0 23.8 1.54 2357 100.0 52000 6332 1.109
Winchester Supreme 780 111.0 32.3 2.09 2354 84.1 52000 7136 1.092
Hodgdon Benchmark 91.5 24.9 1.61 2353 97.5 52000 6712 1.104
IMR 4007 SSC 100.3 28.1 1.82 2342 88.0 52000 7078 1.103
Vihtavuori N133 95.7 24.2 1.57 2339 100.0 52000 6128 1.103
IMR 4198 86.5 21.4 1.39 2339 100.0 52000 5829 1.084
IMR 7828 SSC 112.0 31.8 2.06 2338 79.0 48729 7372 1.107
Vihtavuori N130 90.2 23.3 1.51 2330 100.0 52000 6020 1.112
Hodgdon H4831 SC 112.0 31.3 2.03 2321 80.1 49968 7015 1.109
Vihtavuori N560 112.0 31.6 2.05 2317 78.0 45552 7506 1.132
Alliant Reloder-22 112.0 31.3 2.03 2313 81.5 44846 7499 1.140
Accurate 2700 100.2 28.9 1.87 2296 87.5 52000 6636 1.112
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210013
03/04/16 11:33 PM
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Joined: Jun 2006
Posts: 746
Dennis in Ft Worth
Tracker
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Tracker
Joined: Jun 2006
Posts: 746 |
Hornady's 9th Edition shows the #26110 GMX along with the 120 A-Max and 123 A-Max on page 286. Not near as many different powders as above, but TAC, Varget, RL-15, 748 and CFE-223 are there, with CFE-223 showing the most velocity. I believe the Hornady data is on their web site-
Me and ol' RUGER, 74 years and still shooting.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210041
03/05/16 12:07 AM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
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Joined: Jul 2012
Posts: 604 |
Thanks guys that will give me a start. I checked the Hornady site but did not find published data.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210044
03/05/16 12:09 AM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
There is probably more Grendel data at Ammoguide.com than any other source over 600 loads and growing. Data from powder manfuactures, Alexander Arms and the writers of the 6,5 Grendel load books. I haven't loaded the GMX but it is a popular bullet in the Grendel and available in loads from Precision Firearms.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: Info request- 6.5 Grendel loading
[Re: kmon11]
#6210192
03/05/16 01:49 AM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
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Joined: Jul 2012
Posts: 604 |
There is probably more Grendel data at Ammoguide.com than any other source over 600 loads and growing. Data from powder manfuactures, Alexander Arms and the writers of the 6,5 Grendel load books. I haven't loaded the GMX but it is a popular bullet in the Grendel and available in loads from Precision Firearms. I have been using Ammo guide and the second edition book from Alexander arms for data on 129 gr SST and 129gr. Nosler bullets. My gun is not liking the Nosler/CFE 223 combination. SST /CFE 223 is better but not good enough to keep as the all round load.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210213
03/05/16 02:04 AM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
Mine is liking the Nosler LRAB 129gr and CFE. 30.3 gr CFE223 seated for length of 2.27 inches with CCI 450 primers. Same load that I settled on for the 130gr Berger Hybrids.
Not sure if it is the thinner jackets and little difference in bearing surface but max loads seem to be higher with the SST than with the Berger Hybrids or Nosler LRAB bullets.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210226
03/05/16 02:19 AM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
Look at the percentage of propellant burned for CFE loaded at 52000 psi and consider kmon's load. I think it's a safe bet that 30.3 grains under a 129 will turn in a lot more pressure than 52000 psi. In fact, I'll just run QL on kmon's load: Cartridge : 6.5 Grendel (SAAMI)
Bullet : .264, 129, Nosler AccuBond LR 58943
Useable Case Capaci: 29.619 grain H2O = 1.923 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 20.0 inch = 508.0 mm
Powder : Hodgdon CFE223
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 90 27.27 2265 1469 40616 7404 94.1 1.250
-09.0 91 27.57 2291 1503 42012 7493 94.6 1.231
-08.0 92 27.88 2317 1537 43449 7580 95.0 1.212
-07.0 93 28.18 2343 1572 44939 7664 95.5 1.194 ! Near Maximum !
-06.0 94 28.48 2369 1607 46485 7745 95.9 1.176 ! Near Maximum !
-05.0 95 28.79 2395 1643 48090 7824 96.3 1.158 ! Near Maximum !
-04.0 96 29.09 2421 1679 49757 7900 96.7 1.141 ! Near Maximum !
-03.0 97 29.39 2447 1715 51488 7974 97.1 1.124 !DANGEROUS LOAD-DO NOT USE!
-02.0 98 29.69 2473 1751 53288 8044 97.4 1.107 !DANGEROUS LOAD-DO NOT USE!
-01.0 99 30.00 2499 1788 55159 8111 97.7 1.090 !DANGEROUS LOAD-DO NOT USE!
+00.0 100 30.30 2525 1826 57107 8175 98.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+01.0 101 30.60 2551 1864 59132 8236 98.3 1.058 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 30.91 2577 1902 61240 8293 98.6 1.042 !DANGEROUS LOAD-DO NOT USE!
+03.0 103 31.21 2603 1941 63435 8347 98.8 1.027 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 31.51 2629 1980 65723 8397 99.0 1.011 !DANGEROUS LOAD-DO NOT USE!
+05.0 105 31.82 2655 2019 68109 8443 99.2 0.996 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 30.30 2646 2005 69305 7969 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 30.30 2361 1596 46464 7922 91.6 1.175 ! Near Maximum ! So, at 30.3 grains we're a little over 57000 psi. Remember what the nature of progressive burning powders is. So here's QL telling us that kmon's load is burning 98% of the powder. I'd venture a guess that a load that burns 98% of its powder charge will be much closer to that ratio on a shot-to-shot basis than a load that burns 95% of its charge.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: kmon11]
#6210227
03/05/16 02:20 AM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
Tracker
Joined: Jul 2012
Posts: 604 |
Mine is liking the Nosler LRAB 129gr and CFE. 30.3 gr CFE223 seated for length of 2.27 inches with CCI 450 primers. Same load that I settled on for the 130gr Berger Hybrids.
Not sure if it is the thinner jackets and little difference in bearing surface but max loads seem to be higher with the SST than with the Berger Hybrids or Nosler LRAB bullets. 30.3 gr good to know, I did a ladder test and decided that 29.8 of CFE 223 was what I needed. I took it to the range today and was very disappointed. But the good news is I have plenty of Noslers left so I can bump it up and try again. I'm running a Alexander Arms upper 1:8 and 24 inches. I'm also going to try some Sierra 85 gr HP when I get a little time.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210242
03/05/16 02:27 AM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
Tracker
Joined: Jul 2012
Posts: 604 |
River Rider- Just refreshed and got your info. I did not get any pressure signs at 29.8 but I didn't get better than 2 MOA on accuracy. Now I,m thinking i should stay with a lighter bullet.
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210267
03/05/16 02:46 AM
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Joined: Mar 2012
Posts: 3,809
Cleric
Extreme Tracker
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Extreme Tracker
Joined: Mar 2012
Posts: 3,809 |
I thought max pressure was around 58k
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Re: Info request- 6.5 Grendel loading
[Re: Cleric]
#6210271
03/05/16 02:57 AM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
I thought max pressure was around 58k SAAMI MAX pressure is 52000psi for the Grendel. That in part is how good brass lasts so long and barrel life is very good with the Grendel. That limit is from not wanting to stretch the diameter of the barrel at the chamber with the limits of the AR-15 if I recall what Bill Alexander said about pressures one day. In a bolt action there are lots of guys taking it to 58 to 60000psi. Not a recommended practice in the mini actions but in a 700, Sako or Savage Grendel should not be a problem.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210341
03/05/16 03:57 AM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
I fully agree with that. The problem is, I think, that many powders just won't operate well until you push them up near 60000 psi. When you're consuming 100%, it doesn't get any better. I think a "one or two percent unburned" prediction is not too significant, but when the unburned portion begins to approach five or ten percent then consistency will be out the window.
IMR3031 caught my attention in some of the results I posted. AR Comp also.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210355
03/05/16 04:05 AM
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Joined: Mar 2012
Posts: 3,809
Cleric
Extreme Tracker
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Extreme Tracker
Joined: Mar 2012
Posts: 3,809 |
river any idea what cfe is not on your initial list? i thought leverotion was also a good powder for 6.5
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210356
03/05/16 04:06 AM
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Joined: Mar 2012
Posts: 3,809
Cleric
Extreme Tracker
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Extreme Tracker
Joined: Mar 2012
Posts: 3,809 |
i wish there was an app for quick load
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Re: Info request- 6.5 Grendel loading
[Re: Cleric]
#6210366
03/05/16 04:10 AM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
river any idea what cfe is not on your initial list? i thought leverotion was also a good powder for 6.5 But is IS...sixth one down. Yeah, I know. Sometimes I just can't see either. Maybe I should say most of the time. All right, dammit. I just can't see worth a hang...all the time. Levorution is not in the QL database.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: RiverRider]
#6210367
03/05/16 04:11 AM
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Joined: Mar 2012
Posts: 3,809
Cleric
Extreme Tracker
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Extreme Tracker
Joined: Mar 2012
Posts: 3,809 |
river any idea what cfe is not on your initial list? i thought leverotion was also a good powder for 6.5 But is IS...sixth one down. Yeah, I know. Sometimes I just can't see either. Maybe I should say most of the time. All right, dammit. I just can't see worth a hang...all the time. river there is a more obvious solution...you edited it back in after realizing your mistake.... yeah thats it
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210370
03/05/16 04:13 AM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
I can't get away with NUTHIN, can I??
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: RiverRider]
#6210405
03/05/16 05:02 AM
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Joined: Apr 2013
Posts: 2,416
tenyearsgone
Veteran Tracker
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Veteran Tracker
Joined: Apr 2013
Posts: 2,416 |
Look at the percentage of propellant burned for CFE loaded at 52000 psi and consider kmon's load. I think it's a safe bet that 30.3 grains under a 129 will turn in a lot more pressure than 52000 psi. In fact, I'll just run QL on kmon's load: Cartridge : 6.5 Grendel (SAAMI)
Bullet : .264, 129, Nosler AccuBond LR 58943
Useable Case Capaci: 29.619 grain H2O = 1.923 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 20.0 inch = 508.0 mm
Powder : Hodgdon CFE223
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 90 27.27 2265 1469 40616 7404 94.1 1.250
-09.0 91 27.57 2291 1503 42012 7493 94.6 1.231
-08.0 92 27.88 2317 1537 43449 7580 95.0 1.212
-07.0 93 28.18 2343 1572 44939 7664 95.5 1.194 ! Near Maximum !
-06.0 94 28.48 2369 1607 46485 7745 95.9 1.176 ! Near Maximum !
-05.0 95 28.79 2395 1643 48090 7824 96.3 1.158 ! Near Maximum !
-04.0 96 29.09 2421 1679 49757 7900 96.7 1.141 ! Near Maximum !
-03.0 97 29.39 2447 1715 51488 7974 97.1 1.124 !DANGEROUS LOAD-DO NOT USE!
-02.0 98 29.69 2473 1751 53288 8044 97.4 1.107 !DANGEROUS LOAD-DO NOT USE!
-01.0 99 30.00 2499 1788 55159 8111 97.7 1.090 !DANGEROUS LOAD-DO NOT USE!
+00.0 100 30.30 2525 1826 57107 8175 98.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+01.0 101 30.60 2551 1864 59132 8236 98.3 1.058 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 30.91 2577 1902 61240 8293 98.6 1.042 !DANGEROUS LOAD-DO NOT USE!
+03.0 103 31.21 2603 1941 63435 8347 98.8 1.027 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 31.51 2629 1980 65723 8397 99.0 1.011 !DANGEROUS LOAD-DO NOT USE!
+05.0 105 31.82 2655 2019 68109 8443 99.2 0.996 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 30.30 2646 2005 69305 7969 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 30.30 2361 1596 46464 7922 91.6 1.175 ! Near Maximum ! So, at 30.3 grains we're a little over 57000 psi. Remember what the nature of progressive burning powders is. So here's QL telling us that kmon's load is burning 98% of the powder. I'd venture a guess that a load that burns 98% of its powder charge will be much closer to that ratio on a shot-to-shot basis than a load that burns 95% of its charge. What's this program? Do you just plug in barrel length, grain, and charge?
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Re: Info request- 6.5 Grendel loading
[Re: tenyearsgone]
#6210490
03/05/16 01:01 PM
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Joined: Jul 2012
Posts: 604
red bluff
OP
Tracker
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OP
Tracker
Joined: Jul 2012
Posts: 604 |
Look at the percentage of propellant burned for CFE loaded at 52000 psi and consider kmon's load. I think it's a safe bet that 30.3 grains under a 129 will turn in a lot more pressure than 52000 psi. In fact, I'll just run QL on kmon's load: Cartridge : 6.5 Grendel (SAAMI)
Bullet : .264, 129, Nosler AccuBond LR 58943
Useable Case Capaci: 29.619 grain H2O = 1.923 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 20.0 inch = 508.0 mm
Powder : Hodgdon CFE223
Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-10.0 90 27.27 2265 1469 40616 7404 94.1 1.250
-09.0 91 27.57 2291 1503 42012 7493 94.6 1.231
-08.0 92 27.88 2317 1537 43449 7580 95.0 1.212
-07.0 93 28.18 2343 1572 44939 7664 95.5 1.194 ! Near Maximum !
-06.0 94 28.48 2369 1607 46485 7745 95.9 1.176 ! Near Maximum !
-05.0 95 28.79 2395 1643 48090 7824 96.3 1.158 ! Near Maximum !
-04.0 96 29.09 2421 1679 49757 7900 96.7 1.141 ! Near Maximum !
-03.0 97 29.39 2447 1715 51488 7974 97.1 1.124 !DANGEROUS LOAD-DO NOT USE!
-02.0 98 29.69 2473 1751 53288 8044 97.4 1.107 !DANGEROUS LOAD-DO NOT USE!
-01.0 99 30.00 2499 1788 55159 8111 97.7 1.090 !DANGEROUS LOAD-DO NOT USE!
+00.0 100 30.30 2525 1826 57107 8175 98.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+01.0 101 30.60 2551 1864 59132 8236 98.3 1.058 !DANGEROUS LOAD-DO NOT USE!
+02.0 102 30.91 2577 1902 61240 8293 98.6 1.042 !DANGEROUS LOAD-DO NOT USE!
+03.0 103 31.21 2603 1941 63435 8347 98.8 1.027 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 31.51 2629 1980 65723 8397 99.0 1.011 !DANGEROUS LOAD-DO NOT USE!
+05.0 105 31.82 2655 2019 68109 8443 99.2 0.996 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 100 30.30 2646 2005 69305 7969 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 30.30 2361 1596 46464 7922 91.6 1.175 ! Near Maximum ! So, at 30.3 grains we're a little over 57000 psi. Remember what the nature of progressive burning powders is. So here's QL telling us that kmon's load is burning 98% of the powder. I'd venture a guess that a load that burns 98% of its powder charge will be much closer to that ratio on a shot-to-shot basis than a load that burns 95% of its charge. What's this program? Do you just plug in barrel length, grain, and charge? http://www.neconos.com/details3.htmQL= Quick Loads
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210589
03/05/16 02:59 PM
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Joined: Feb 2009
Posts: 5,872
GLC
THF Trophy Hunter
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THF Trophy Hunter
Joined: Feb 2009
Posts: 5,872 |
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210912
03/05/16 10:06 PM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
Unless you know what to tweek quickloads will be up to 10k high on pressures on a SAAMI chambered grendel. It will also be high on a grendel II chamber but not as high. That info is from a couple of the writers of the grendel reloading books that pressure test the loads
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6210914
03/05/16 10:08 PM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
Will add more later. But the load I listed is 51k and a little change in their testing and I got the load from them. For the lrab and worked with them on the berger hybrid loads
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6211038
03/06/16 01:08 AM
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Joined: Nov 2007
Posts: 9,502
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,502 |
Is it the default case capacity causing this, kmon??
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Info request- 6.5 Grendel loading
[Re: red bluff]
#6211081
03/06/16 01:40 AM
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Joined: Sep 2006
Posts: 32,442
kmon11
junior
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junior
Joined: Sep 2006
Posts: 32,442 |
I think it has to do with start pressure and how the compound throat starts engraving the rifling then it gets the full engraving spreading it out over a longer area of engraving the rifling in a stepped approach from what we have figured out so far. I have worked some with quickload with pressure data from his pressure test gun got it very close but those changes seem to be somewhat firearm specific. We are going to do more with it and contact Neco. Default case capacity is very close and weighed with a case full of water and correcting does not get us there. Strange though Velocities predicted have been very close to actual velocities with them being a little slow for non gas guns and a little high for gas guns. Don't think QL takes gas tax into account. For an example of this use Hornady data of 31.7 grains of CFE223 at 2.265 I think it is with a 129gr SST, QL will have that pressure very high while Hornady indicates it is under SAAMI max pressure of 52000.
Another that I have talked to Neco about is the 6.5-284, it predicts wrong on that one as well only the other direction predicting pressures lower than encountered in real life. They said they would investigate that one and hopefully update in a future release. That cartridge several powders show max loads to be 4 or more grains over what several rifles have had sticky bolts with and do not match published reloading data from other sources.
Last edited by kmon1; 03/06/16 01:46 AM.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
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