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Hunting
Long Range Hunting & Shooting
Point of impact shift with carbon fiber wrapped barrels
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<blockquote data-quote="Im4u2nvrc" data-source="post: 2879531" data-attributes="member: 115720"><p>I have a Christensen Arms 300 PRC MPR (CWB). I first noticed the same thing with my shot groups compared to my friends Bergara 300 PRC (Steel Barrel). The warmer the chamber, the more the next bullet's muzzle velocity was thrown off. I talked to some old veteran shooters about our issues. They said I was "pre-cooking" my rounds. The extra chamber heat changes the ignition speed of my powder. If I let it cool down between shots, I didn't have a problem.</p></blockquote><p></p>
[QUOTE="Im4u2nvrc, post: 2879531, member: 115720"] I have a Christensen Arms 300 PRC MPR (CWB). I first noticed the same thing with my shot groups compared to my friends Bergara 300 PRC (Steel Barrel). The warmer the chamber, the more the next bullet's muzzle velocity was thrown off. I talked to some old veteran shooters about our issues. They said I was "pre-cooking" my rounds. The extra chamber heat changes the ignition speed of my powder. If I let it cool down between shots, I didn't have a problem. [/QUOTE]
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Point of impact shift with carbon fiber wrapped barrels
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