texashuntingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
garey, SteveG, justin77, Tjh, Clint Mcmullen
72051 Registered Users
Top Posters(All Time)
dogcatcher 110,795
bill oxner 91,416
SnakeWrangler 65,525
stxranchman 60,296
Gravytrain 46,950
RKHarm24 44,585
rifleman 44,461
Stub 43,914
Forum Statistics
Forums46
Topics537,970
Posts9,731,198
Members87,051
Most Online25,604
Feb 12th, 2024
Print Thread
Pressure signs #6046483 11/24/15 03:14 AM
Joined: Nov 2010
Posts: 971
P
P & Y Offline OP
Tracker
OP Offline
Tracker
P
Joined: Nov 2010
Posts: 971
I'm working on some loads for a 6.5 creed with the 130gr VLD and H4350. while working up I started getting flattened primers at 40.8 grains. It shoots decent but I'm seeing velocities in the 2600 range which isn't going to cut it. Would it be wise to just keep going up until I see substantial ejector swipes or sticky bolt lift, then back off? I know most guys are running somewhere around 43-44gr but was a little leery to keep going.



Re: Pressure signs [Re: P & Y] #6046583 11/24/15 04:02 AM
Joined: Nov 2011
Posts: 3,637
D
DStroud Offline
Extreme Tracker
Offline
Extreme Tracker
D
Joined: Nov 2011
Posts: 3,637
Flattened primers may or may not mean excessive pressure. I would ease on up watching for all the things you mentioned.


"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963
Re: Pressure signs [Re: DStroud] #6046636 11/24/15 04:45 AM
Joined: Sep 2006
Posts: 32,498
kmon11 Offline
junior
Offline
junior
Joined: Sep 2006
Posts: 32,498
Originally Posted By: DStroud
Flattened primers may or may not mean excessive pressure. I would ease on up watching for all the things you mentioned.


Yup what he said


lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Pressure signs [Re: P & Y] #6046926 11/24/15 02:00 PM
Joined: Mar 2014
Posts: 243
300_WizzM Offline
Woodsman
Offline
Woodsman
Joined: Mar 2014
Posts: 243
You can also lower the pressure by seating bullet further off the lands.

Re: Pressure signs [Re: 300_WizzM] #6046958 11/24/15 02:12 PM
Joined: Oct 2004
Posts: 39,542
R
redchevy Offline
THF Celebrity
Offline
THF Celebrity
R
Joined: Oct 2004
Posts: 39,542
Originally Posted By: 300_WizzM
You can also lower the pressure by seating bullet further off the lands.


Which way is it I also hear a lot of people say you lower pressure seating bullet further out, creating a larger case volume and lower pressure.


It's hell eatin em live
Re: Pressure signs [Re: P & Y] #6046992 11/24/15 02:25 PM
Joined: Mar 2014
Posts: 243
300_WizzM Offline
Woodsman
Offline
Woodsman
Joined: Mar 2014
Posts: 243
It has been my experience that you get lower pressures off the lands. One of the reason I will not jam bullets into lands while working up.

Re: Pressure signs [Re: P & Y] #6047077 11/24/15 03:03 PM
Joined: Nov 2010
Posts: 971
P
P & Y Offline OP
Tracker
OP Offline
Tracker
P
Joined: Nov 2010
Posts: 971
I'm seated .090 off right now. Thats about as close as I can get them and still fit and feed reliably.



Re: Pressure signs [Re: P & Y] #6047129 11/24/15 03:28 PM
Joined: Nov 2007
Posts: 9,521
R
RiverRider Offline
THF Trophy Hunter
Offline
THF Trophy Hunter
R
Joined: Nov 2007
Posts: 9,521
You will increase pressure seating deeper once you go for deep enough, but you'd have to decrease the powder space quite a bit to see it happen. Both factors operate simultaneously.


[Linked Image]

"Arguing with you always makes me thirsty."

-Augustus McRae
Re: Pressure signs [Re: P & Y] #6047295 11/24/15 04:57 PM
Joined: Sep 2009
Posts: 18,951
C
ChadTRG42 Offline
THF Celebrity
Offline
THF Celebrity
C
Joined: Sep 2009
Posts: 18,951
The 2 signs of pressure I watch for are sticky bolt lift and shiny spots on the case head. Primers will flatten out or protrude at the firing pin strike very easily even with mild loads. So, I do not watch for those signs.

With a 130 grain, you should be running about 2850, maybe 2900. Even at 40.8, you are below max charge with a 140 grain, so keep on going up.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: Pressure signs [Re: P & Y] #6060174 12/01/15 03:17 PM
Joined: Apr 2015
Posts: 610
J
JTPinTX Offline
Tracker
Offline
Tracker
J
Joined: Apr 2015
Posts: 610
I agree with Chad. That is nowhere near close on an "average" Creedmoor. Of course that depends some on barrel length too, what length is your barrel? I love my Creed and have shot all bullet weights extensively using H-4350.

One thing I will say, the downfall of the Creed is the brass. Hornady brass is what I use, and it is kind of soft. If you get your loads too hot you will start blowing primer pockets pretty easy compared to harder brass. In my rifle the high node for 130's was a bit hot, and I wasn't getting the brass life I wanted. With either the 140 class or 123 SMK the high node peaked a bit lower, and was much better for brass life.

I am running a 140 at 2725 (42.3 grains H-4350) in a barrel that has been chopped to 22", with good brass life.

Previous Thread
Index
Next Thread

© 2004-2024 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3