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Old November 13, 2012, 03:18 AM   #5
Clark
Senior Member
 
Join Date: December 4, 1999
Location: WA, the ever blue state
Posts: 2,974
The Rem and Sako are different.
If I plug into Quickload that the Rem is getting 2700 fps 7mm-08 26" with 45.5 gr H4350 and 150 gr BT, then I have to fool with the start pressure and/or OAL to get QL to agree.
Under those conditions 22" would make 2598 fps, 18" would make 2368 fps.
All at 48,191 psi
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But to get QL to agree with the Sako ggetting 2675 fps with 23.375" barrel, then a 26" would get 2738 fps and an 18" would get 2511 fps.
all at 51,633 psi
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The 7mm-08 was SAAMI registered at 61,000 psi by Remington.
The same case head does 65,000 psi in the 22-250 Reminton.
Switching to H4895, another extreme powder, could drive that bullet at 2939 fps with a 7mm-08 26" barrel and 65,000 psi.
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I have pushed the 150 gr BT through a 26" barrel and a 7mmRM at 3375 fps, yet 3250 fps with the same load in a different rifle.
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