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Joined: Oct 2010
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Campfire Tracker
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Campfire Tracker
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well since you're such a smart [bleep], please elaborate on the secrets of taking SA700 to 2.975. The only way im aware of is with something such as wyatts bottom metal>? easy, i suppose its not hard, spendy for sure. I have personally never seen a 284 that was able to mag feed something such as 168, and not have them intrude into case capacity. at least not in something that isnt highly customized, but then again, i havent seen very many rifles compared to a lot of you guys. Also on your 24" tube'd AI. what powders are you finding best for that kind of speed with a good accuracy node.
I kill chit. "The Heathens nest"
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Joined: Sep 2014
Posts: 21,852 Likes: 4
Campfire Ranger
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Campfire Ranger
Joined: Sep 2014
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Parents who say they have good kids..Usually don't!
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Joined: Oct 2010
Posts: 3,379
Campfire Tracker
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Campfire Tracker
Joined: Oct 2010
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wtf^ bunny with a pancake on its head..
I kill chit. "The Heathens nest"
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Joined: Nov 2005
Posts: 6,168
Campfire Tracker
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Campfire Tracker
Joined: Nov 2005
Posts: 6,168 |
well since you're such a smart [bleep], please elaborate on the secrets of taking SA700 to 2.975. The only way im aware of is with something such as wyatts bottom metal>? easy, i suppose its not hard, spendy for sure. I have personally never seen a 284 that was able to mag feed something such as 168, and not have them intrude into case capacity. at least not in something that isnt highly customized, but then again, i havent seen very many rifles compared to a lot of you guys. Also on your 24" tube'd AI. what powders are you finding best for that kind of speed with a good accuracy node. A wyatts box is pretty cheap and not that hard to install. the 284 I put together on a SA used the box, factory bottom metal and follower for a 308 and fed fine and was an easy install.
The collection of taxes which are not absolutely required, which do not beyond reasonable doubt contribute to public welfare, is only a species of legalized larceny. Under this Republic the rewards of industry belong to those who earn them. Coolidge
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Joined: Dec 2004
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
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AICS mag and feed ramp notch.
I replace valve cover gaskets every 50K, if they don't need them sooner...
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Joined: Feb 2014
Posts: 65
Campfire Greenhorn
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Campfire Greenhorn
Joined: Feb 2014
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My question was what do you base your 70,000 psi on fact or your assumption. I also asked what equipment you used to reach your number. ANSWER THE QUESTION. There are no magic powders or barrels. Velocity = Pressure
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Joined: Jan 2010
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Campfire Outfitter
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Campfire Outfitter
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It's ok your experience is right pressure = velocity. I did not use the load tell the bolt locks and back of a grain that is not a safe method to load any caliber. Gfy is the answer I was looking for  you data is opinion at best so it's void. In my experience it's the shoulder angle change and 4.5% more space that makes the 7-08AI a touch faster than the 7-08. My go to load for the 140grn accubond is 43 grns of varget 2.830" I have also used h 4350 at 52 grs and RL 19 at 51 grns. The hotter loads I used some brass we made for 308 win that had lots of internal space and a very hard web it was a run for the DOD really good stuff.
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Joined: Jan 2009
Posts: 8,900 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
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So my data is opinion, but yours is fact. Got it. 
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Joined: Feb 2014
Posts: 65
Campfire Greenhorn
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Campfire Greenhorn
Joined: Feb 2014
Posts: 65 |
It's ok your experience is right pressure = velocity. I did not use the load tell the bolt locks and back of a grain that is not a safe method to load any caliber. Gfy is the answer I was looking for you data is opinion at best so it's void. In my experience it's the shoulder angle change and 4.5% more space that makes the 7-08AI a touch faster than the 7-08. My go to load for the 140grn accubond is 43 grns of varget 2.830" I have also used h 4350 at 52 grs and RL 19 at 51 grns. The hotter loads I used some brass we made for 308 win that had lots of internal space and a very hard web it was a run for the DOD really good stuff. My experience is with a Oehler 43 PBL for load development. Just because there are no pressure signs does not mean that you are not over pressured. Hodgdon listed pressures are pretty close IME. If your velocities are higher than their listed velocities for that bbl length and bullet then you are over pressured. Different bullets of the same weight also have different pressure characteristics. A faster twist bbl will also have higher pressures than a slower twist in most cases. My response was to the 70K PSI reference and listed veloctiies.
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Joined: Jan 2010
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Campfire Outfitter
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Campfire Outfitter
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Last word
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Joined: Jan 2010
Posts: 8,423
Campfire Outfitter
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Campfire Outfitter
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You are right 100% I did not mean to quote you I a bad light. We have been using a 83 oehler is a first class company all the way
Last edited by fredIII; 12/28/14.
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Joined: Jul 2007
Posts: 501
Campfire Regular
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Campfire Regular
Joined: Jul 2007
Posts: 501 |
For conversation, I am gunning 162s at 2840 via vanilla 7/08. 26" Rock 5r. H4350/Win brass.
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Joined: Oct 2010
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Campfire Tracker
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Campfire Tracker
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^that is FLYING. good god. how stout of dose of 4350 is that with?
I kill chit. "The Heathens nest"
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Joined: Jul 2007
Posts: 501
Campfire Regular
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Campfire Regular
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Joined: Jan 2010
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Campfire Outfitter
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Campfire Outfitter
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Fast for sure. Sounds like a perfect combo I have a 7mm RM that only pushes 168 at 2680 it's a bug hole making sog but slow as death.
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Joined: Jan 2009
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Campfire Outfitter
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Campfire Outfitter
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What OAL? As an FYI, that load is 2.5 grains over Hodgdon max.
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Joined: Jul 2007
Posts: 501
Campfire Regular
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Campfire Regular
Joined: Jul 2007
Posts: 501 |
Per what they publish now it is. A few years back they listed max as 48.0.
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Joined: Oct 2011
Posts: 2,926
Campfire Regular
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Campfire Regular
Joined: Oct 2011
Posts: 2,926 |
Per what they publish now it is. A few years back they listed max as 48.0. My Lee manual shows that load - 2.875 COAL. It also lists velocity at 2714fps... David
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Joined: Jul 2007
Posts: 501
Campfire Regular
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Campfire Regular
Joined: Jul 2007
Posts: 501 |
My previous barrel was a 22" Broughton. I shot 48.0 in it at 2750. Verified by Ohler 35 and actual come ups. Heck, I managed a couple top 15 finishes in PRS matches with it.
When it came time for rebarrel (4500 rounds), I wanted to get 2800 or better. Plumbed up this Rock 5R at 26" and it hasn't disappointed. Verified by Magneto Speed and actual come ups.
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Joined: Jan 2010
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Campfire Outfitter
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Campfire Outfitter
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So my data is opinion, but yours is fact. Got it. To make it clear you have no data or reference just opinion. That's been my point.
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