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Loading a 20" Barrel which powder??
#5983012
10/18/15 11:42 PM
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Joined: Jun 2011
Posts: 33,787
Buzzsaw
OP
THF Celebrity
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OP
THF Celebrity
Joined: Jun 2011
Posts: 33,787 |
Looking at 6.5X55, .260, 20" barrel hunting rifle. probably 140gr bullets, which powders would get the most powder burned up in 20", in another words which powders should I look at, accuracy and velocity being the same?
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Re: Loading a 20" Barrel which powder??
[Re: Buzzsaw]
#5983059
10/19/15 12:04 AM
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Joined: Nov 2007
Posts: 9,501
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,501 |
Unless you're concerned with muzzle flash/blast, use the same powder you'd choose for a 24-inch barrel.
Even with very large small arms cartridges using the slowest powders, your propellant will have burned by the time the bullet moves very far at all. Whatever is going to burn will have burned long before the bullet exits the muzzle.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Loading a 20" Barrel which powder??
[Re: Buzzsaw]
#5983074
10/19/15 12:14 AM
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Joined: Nov 2007
Posts: 9,501
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,501 |
Cartridge : 6.5 x 55 Swedish
Bullet : .264, 140, Nosler AccuBond 39457
Useable Case Capaci: 51.841 grain H2O = 3.366 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length : 23.5 inch = 596.9 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55114 psi, or 380 MPa
or a maximum loading ratio or filling of 115 %
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 !
3 loads produced a Loading Ratio below user-defined minimum of 80%. 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
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 111.0 55.9 3.62 2890 93.2 55114 13552 1.217
Hodgdon Retumbo 114.5 55.0 3.56 2878 99.8 55114 12548 1.213
ADI AR 2225 114.5 55.0 3.56 2878 99.8 55114 12548 1.213
Alliant Reloder-33 111.3 58.5 3.79 2875 93.5 55114 13403 1.218
Alliant Reloder-25 107.5 51.1 3.31 2857 100.0 55114 11833 1.219
Norma MRP 99.6 49.7 3.22 2854 99.4 55114 12221 1.229
ADI AR 2218 113.8 57.9 3.75 2845 91.8 55114 13564 1.211
Vihtavuori N560 101.2 49.4 3.20 2840 96.9 55114 12374 1.226
Accurate MAGPRO 101.6 51.6 3.35 2832 95.5 55114 12432 1.232
IMR 7828 105.5 49.0 3.17 2826 97.3 55114 11991 1.217
IMR 7828 SSC 99.8 49.0 3.17 2826 97.3 55114 11991 1.217
Alliant Reloder-22 101.4 49.0 3.17 2821 98.5 55114 11958 1.232
Winchester WXR 104.1 49.2 3.19 2820 98.4 55114 11967 1.233
ADI AR 2213 100.7 48.6 3.15 2810 97.2 55114 11856 1.216
Ramshot Magnum 101.6 52.9 3.43 2808 99.0 55114 11541 1.223
ADI AP 2214 104.8 52.0 3.37 2803 97.4 55114 11767 1.214
Norma 217 115.0 54.1 3.51 2801 98.6 49011 12718 1.290
ADI AR 2217 110.1 52.1 3.37 2801 97.4 55114 11731 1.215
Hodgdon H1000 110.1 52.1 3.37 2801 97.4 55114 11731 1.215
Alliant Reloder-17 88.8 44.5 2.89 2799 100.0 55114 10731 1.232
Hodgdon H870 115.0 56.7 3.68 2786 93.7 50050 12904 1.275
ADI AR 2209 97.3 46.3 3.00 2777 98.3 55114 11269 1.223
Alliant Reloder-19 97.8 46.7 3.03 2774 98.4 55114 11326 1.232
Ramshot Hunter 93.4 46.1 2.99 2772 99.8 55114 11029 1.239
Winchester 760 88.1 44.5 2.89 2768 99.4 55114 11027 1.241
Hodgdon H414 88.1 44.5 2.89 2768 99.4 55114 11027 1.241
Alliant Reloder-50 115.0 59.4 3.85 2756 90.4 47422 13212 1.317
Norma URP 92.8 43.9 2.84 2753 100.0 55114 10552 1.247
Vihtavuori N550 90.1 44.0 2.85 2752 100.0 55114 10671 1.251
Norma 204 92.7 45.8 2.97 2751 98.2 55114 11021 1.234
Hodgdon H4831 SC 99.2 47.9 3.11 2751 96.5 55114 11140 1.229
Hodgdon H4831 103.2 47.9 3.11 2751 96.5 55114 11140 1.229
Accurate 4350 92.3 44.1 2.86 2750 100.0 55114 10550 1.266
Vihtavuori 24N41 112.2 57.1 3.70 2749 85.8 55114 11801 1.224
IMR 4831 97.5 44.6 2.89 2737 100.0 55114 10338 1.256
Accurate 3100 101.5 48.5 3.14 2736 99.8 55114 10651 1.268
Winchester Supreme 780 96.8 48.8 3.16 2734 98.2 55114 10805 1.237
Vihtavuori N170 113.1 53.5 3.47 2732 91.5 55114 11392 1.249
Vihtavuori N165 103.4 48.9 3.17 2730 98.8 55114 10634 1.242
Hodgdon Hybrid 100V 95.4 44.1 2.86 2717 100.0 55114 9737 1.246
Hodgdon H380 85.6 41.8 2.71 2710 100.0 55114 10156 1.257
Vihtavuori N160 103.1 47.2 3.06 2708 97.2 55114 10537 1.239
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Loading a 20" Barrel which powder??
[Re: Buzzsaw]
#5983075
10/19/15 12:15 AM
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Joined: Nov 2007
Posts: 9,501
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,501 |
Notice how many powders do not achieve 100% consumption. I had barrel length set at 23.5 inches.
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Loading a 20" Barrel which powder??
[Re: Buzzsaw]
#5983085
10/19/15 12:22 AM
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Joined: Nov 2007
Posts: 9,501
RiverRider
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2007
Posts: 9,501 |
With a 20-inch barrel. I haven't checked closely and do not intend to, but you won't see any significant shift in position for velocity for any of the powders listed in the results. There may be one or two, but they won't be significant. Cartridge : 6.5 x 55 Swedish
Bullet : .264, 140, Nosler AccuBond 39457
Useable Case Capaci: 51.841 grain H2O = 3.366 cm³
Cartridge O.A.L. L6: 3.150 inch = 80.01 mm
Barrel Length : 20.0 inch = 508.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 55114 psi, or 380 MPa
or a maximum loading ratio or filling of 115 %
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 !
3 loads produced a Loading Ratio below user-defined minimum of 80%. 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
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 111.0 55.9 3.62 2761 91.0 55114 16078 1.114
Hodgdon Retumbo 114.5 55.0 3.56 2756 99.0 55114 15199 1.110
ADI AR 2225 114.5 55.0 3.56 2756 99.0 55114 15199 1.110
Alliant Reloder-33 111.3 58.5 3.79 2746 91.3 55114 15891 1.114
Alliant Reloder-25 107.5 51.1 3.31 2741 99.8 55114 14415 1.115
Norma MRP 99.6 49.7 3.22 2735 98.6 55114 14741 1.124
Vihtavuori N560 101.2 49.4 3.20 2720 95.4 55114 14795 1.121
ADI AR 2218 113.8 57.9 3.75 2714 89.1 55114 15975 1.106
Accurate MAGPRO 101.6 51.6 3.35 2710 93.7 55114 14830 1.127
IMR 7828 105.5 49.0 3.17 2708 95.9 55114 14374 1.112
IMR 7828 SSC 99.8 49.0 3.17 2708 95.9 55114 14374 1.112
Alliant Reloder-22 101.4 49.0 3.17 2703 97.4 55114 14359 1.126
Winchester WXR 104.1 49.2 3.19 2702 97.2 55114 14362 1.127
ADI AR 2213 100.7 48.6 3.15 2693 95.7 55114 14180 1.110
Ramshot Magnum 101.6 52.9 3.43 2693 98.0 55114 13928 1.117
Alliant Reloder-17 88.8 44.5 2.89 2692 100.0 55114 13081 1.126
ADI AP 2214 104.8 52.0 3.37 2687 95.9 55114 14104 1.108
ADI AR 2217 110.1 52.1 3.37 2684 95.9 55114 14062 1.108
Hodgdon H1000 110.1 52.1 3.37 2684 95.9 55114 14062 1.108
Norma 217 115.0 54.1 3.51 2674 97.1 49011 15274 1.183
ADI AR 2209 97.3 46.3 3.00 2664 97.2 55114 13525 1.116
Ramshot Hunter 93.4 46.1 2.99 2661 99.2 55114 13335 1.132
Alliant Reloder-19 97.8 46.7 3.03 2661 97.2 55114 13590 1.125
Hodgdon H870 115.0 56.7 3.68 2658 91.4 50050 15280 1.168
Winchester 760 88.1 44.5 2.89 2656 98.6 55114 13318 1.134
Hodgdon H414 88.1 44.5 2.89 2656 98.6 55114 13318 1.134
Norma URP 92.8 43.9 2.84 2645 99.9 55114 12840 1.139
Vihtavuori N550 90.1 44.0 2.85 2643 99.8 55114 12954 1.143
Accurate 4350 92.3 44.1 2.86 2642 99.9 55114 12873 1.158
Norma 204 92.7 45.8 2.97 2640 97.0 55114 13223 1.125
Hodgdon H4831 103.2 47.9 3.11 2639 95.0 55114 13315 1.121
Hodgdon H4831 SC 99.2 47.9 3.11 2639 95.0 55114 13315 1.121
Vihtavuori 24N41 112.2 57.1 3.70 2631 83.4 55114 13911 1.115
IMR 4831 97.5 44.6 2.89 2631 99.9 55114 12605 1.148
Accurate 3100 101.5 48.5 3.14 2627 99.2 55114 12918 1.159
Winchester Supreme 780 96.8 48.8 3.16 2624 97.1 55114 12971 1.128
Alliant Reloder-50 115.0 59.4 3.85 2624 87.8 47422 15557 1.208
Vihtavuori N165 103.4 48.9 3.17 2622 97.7 55114 12818 1.133
Vihtavuori N170 113.1 53.5 3.47 2617 89.5 55114 13522 1.140
Hodgdon Hybrid 100V 95.4 44.1 2.86 2617 100.0 55114 11901 1.137
Hodgdon H380 85.6 41.8 2.71 2605 99.7 55114 12328 1.147
Vihtavuori N160 103.1 47.2 3.06 2600 95.9 55114 12632 1.129
Norma 203 old 85.8 41.5 2.69 2598 100.0 55114 11889 1.160
IMR 4007 SSC 87.4 42.4 2.75 2588 98.2 55114 12337 1.141
Accurate 4064 85.1 39.8 2.58 2560 100.0 55114 11118 1.182
"Arguing with you always makes me thirsty." -Augustus McRae
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Re: Loading a 20" Barrel which powder??
[Re: Buzzsaw]
#5983212
10/19/15 01:36 AM
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Joined: Dec 2008
Posts: 41,083
J.G.
THF Celebrity
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THF Celebrity
Joined: Dec 2008
Posts: 41,083 |
20" barrel same as a 24" barrel.
H-4350
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