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Old December 3, 2012, 09:27 PM   #9
mehavey
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Join Date: June 17, 2010
Location: Virginia
Posts: 2,868
Quote:
...39 gr Sierra on 24.5 grains of RL10 3700 FPS factory OAL.
I looked at Lyman's 49th for a reference and got 40grV-Max/23.3gr RL-10 at 56,000psi.

Alliant didn't list RL-10 for the 204, and Sierra didn't have anything for me in their 5th ed either. So I went looking on the web... found loads as high as 25.1gr under a 39gr BlitzKing

But then, I ran QuickLoad at your 24.5gr under a the 39gr Sierra and got 66,000 psi. (The Case max is 58.7).
Any chance you're stressing things a bit?
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