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Old August 30, 2012, 10:38 AM   #10
SL1
Senior Member
 
Join Date: November 8, 2007
Posts: 2,001
Sorry, you posted the length while I was responding to "Yes" without the length, which you then edited. Now I find that I can't edit my last post.

Anyway, using a bullet length of 0.56", I get 35,528 psi.

That is just above the SAAMI standard pressure limit, but under the SAAMI +P limit.

Howeveer, QuickLOAD is not very accurate with just its ddefault values, and usually over-predicts pressure without getting things like your actual case capacity. The more useful information is probably the CHANGE in pressure that results from the shortening of your COL.

For your original COL of 1.164, I get 34,560 psi.

So, shortening your COL raises your pressure by about 1000 psi, which is less than the typical cartridge-to-cartridge variation with the same load on actual pressure testing equipment.

SL1
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