20” 6.5prc help

2frogeyes

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Joined
Jul 25, 2012
Messages
193
Location
AZ
i built a lightweight hunting rifle with a 20” Proof cf barrel. I’m looking to hunt with the 143 or 147 bullets. Any suggestions on where to start with load development? I’m leaning towards 4831sc or H4350 mainly because I have it on hand. Didn’t know if since I have a 20” barrel I should try something else. Thx
 

codyadams

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Jan 7, 2015
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3,978
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Southwest Wyoming
H4831sc wouldn't be a bad option, maybe even one of the better ones for a short barrel due to it's faster burn rate compared to some of the other popular powders for cartridges in that category, such as H1000, Retumbo, Reloder 26, VV 560 and 565, and so on. H4350 would likely work well too, but I would lean towards H4831sc, I have always been able to get very accurate loads using it, even if it didn't produce the highest velocity.
 

CLP

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Joined
Jan 5, 2014
Messages
171
Location
Denver, CO
I have that exact setup and mine really likes Retumbo and H1000. I'm right at 60.0 grains of Retumbo with the 143 ELDX and 59.0 grains of H1000 with a 140 Berger VLD for best accuracy. ELDX is going 2880 and Berger 2790.
 
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