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extreme speed 7mm stw

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Unread 02-14-2011, 01:27 AM
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Join Date: Jul 2004
Location: Texas
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Re: extreme speed 7mm stw

Originally Posted by Long Time Long Ranger View Post
JE, what powders are you using to get those velocities. My STW's are only 26" barrels and with five more inches of barrel you are going to be way faster. I was just wondering if I am using the wrong powder combos with the 140's. About 3550 for me and I am starting to flatten primers pretty good. I use mine pretty much for 800 yards and closer on deer-antelope size stuff so shoot the 140 class bullets quite a bit for flatter trajectory.
I was using H 5010 and a compressed load (I think It was 91 to 93 grains but dont quote me on that)
I will have to go back and look at my loading notes, I do remember that primer pockets did not
last but 2 to 3 shots. and with poor accuracy I abandoned the heavy loads and settled for 3650 to
3700 ft/sec.

I also had some barrel issues and later re barreled the rifle with a 26" lilja and the velocity dropped
back to 3540 ft/sec average and shot great. ( So much for the experiment to get higher velocity)

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