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Old 06-12-2010, 08:25 AM   #4 (permalink)
Walt
I'm calmer than you are, dude
 
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Location: North Carolina
So....you're telling me that I should weld the pins in place?

I just rechecked the Sierra manual and my numbers were way off. I was getting (an advertised) 2750 fps with 24.0 grs of TAC from my SPR with the 77 gr SMKs. From the 14.5" barrel, I figure the velocity should be somewhere around 2500 fps with the same load (using Gale McMillian's math). Still too much?
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Last edited by Walt; 06-12-2010 at 08:27 AM..
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