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20BR vs 20BR-IMP with 55gr Berger

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  #1  
Unread 09-24-2010, 09:30 AM
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Join Date: Jul 2009
Posts: 31
20BR vs 20BR-IMP with 55gr Berger

What is the thought on shooting the 55gr Berger for varmint hunting? Does 20BR have enough capacity or is one of the improved wildcats better matched with their extra case capacity?
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  #2  
Unread 03-22-2017, 03:13 PM
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Join Date: Nov 2007
Location: Near Mt Rainier
Posts: 317
Re: 20BR vs 20BR-IMP with 55gr Berger

I have a 28 inch Mcgowen 8 twist barrel. I get the following 20 BR using R-17 velocities with my Magnetospeed:

31.0 gr 3604 17.7SD 31.0 gr 3578 24.4 31.1 gr 3617 3.5 31.1 gr 3570 7.8 31.2 gr 3617 7.1 31.3 gr 3646 6.4 31.4 gr 3632 6.8





29.7 gr 3572 10.1 31.0 gr 3543 0.7
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