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Varmint Hunting
IMR 4064 Temp Stability
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<blockquote data-quote="VinceMule" data-source="post: 2816376" data-attributes="member: 122164"><p>Op, in those extremes of Winter Kansas coyote hunting, Varget with the 50-55g is going to be a hands-down winner with cci 200s. If you can not touch the lands in your barrel, go to a 63g Sierra which shoots superbly in a 14 twist, and use H4350.</p><p></p><p>As the leade gets long, trying to stick with the 55's, the Sierra 55g BTHP shot and killed extremely well with this bullet still shooting well with some jump to the lands. As accuracy started to wane with the Sierra 55g bthp, I went to the 63g Sierra and got another 800 rounds out of the barrel.</p><p></p><p>4064 is darn rough on barrels and Varget will be at least as bad. Before a gunsmith in San Diego told me about 2700 in his swift, we had gone to Win 760 and H414 with great results, but 2700 burns cooler than 760.</p><p></p><p>The 62g and 65g sierra will NOT stabilize in a 14 twist, even at Swift speeds.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 2816376, member: 122164"] Op, in those extremes of Winter Kansas coyote hunting, Varget with the 50-55g is going to be a hands-down winner with cci 200s. If you can not touch the lands in your barrel, go to a 63g Sierra which shoots superbly in a 14 twist, and use H4350. As the leade gets long, trying to stick with the 55's, the Sierra 55g BTHP shot and killed extremely well with this bullet still shooting well with some jump to the lands. As accuracy started to wane with the Sierra 55g bthp, I went to the 63g Sierra and got another 800 rounds out of the barrel. 4064 is darn rough on barrels and Varget will be at least as bad. Before a gunsmith in San Diego told me about 2700 in his swift, we had gone to Win 760 and H414 with great results, but 2700 burns cooler than 760. The 62g and 65g sierra will NOT stabilize in a 14 twist, even at Swift speeds. [/QUOTE]
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