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Old 03-14-2023, 05:14 PM
FastPPC FastPPC is offline
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Join Date: Jul 2014
Posts: 151
Default 20 Nosler new build

Started this build in 2017 right after Nosler announced the 20 Nosler. Then they didn't go forward with it after posted SAAMI specs. Nosler rep told me they rushed it so people didn't wildcat the 22 Nosler and mess up their plans. Who knows, all I know been a long time coming.

Bob Green sent the rifle back to me last month and as usual he does first cabin work. Real pleasure to work with on a build. This is my 5th rifle he's built and all are shooters.

Thought the case capacity would lend itself to great performance with the 50 gr Bergers then came the 55 gr Bergers even better.

Cooper 21 action from a 204 Ruger I have shoots 1/4" MOA in 204 very accurate Cooper
PacNor 3 groove 9 twist barrel 24" has the same contour as Wilson barrel on Cooper
55 gr Berger VLD's

Little disappointed with the speeds I found although still working on it. No where near case capacity and reach pressure signs. Still looking at different powders but these are what I have today.

Varget 3,550 fps 8.6 SD
H 4895 3525 fps 10.2 SD
IMR 4064 3575 fps 8.4 SD
N- 203B 3540 fps 10.6 SD
All powders shoot under 1/2" MOA several 5 shot groups were 1/4" so looks like I'll have a 3,500 fps prairie dog shooter good to 500 yds.

Any suggestion for powder would be appreciated. ?This is my first build that I had to work on loads with no load data to start with so took a little more time than I imagined.
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