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Rifles, Reloading, Optics, Equipment
Reloading
accuracy in load developement
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<blockquote data-quote="Mikecr" data-source="post: 306295" data-attributes="member: 1521"><p>My suspicions are validated..</p><p>A cold bore is different dimensionally from a hot bore. Barrel stresses change, and fowling is different. You can assume away, but I'd group no less than 2hrs/shot, and exactly as you would in the field(off bipod,etc) to see cold barrel accuracy(in group form). And to see if it's simply a matter of dialing in for your gun, or whether work is needed on scope mounting/ballistics,etc. I'd also be shooting across a chronograph, every shot.</p><p></p><p>It might not be a problem at all for your barrel. But I've seen huge differences in best cold barrel load -vs- best hot barrel load(especially w/regard to ES). I've had only one gun and load combo that truely shot the same either way.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 306295, member: 1521"] My suspicions are validated.. A cold bore is different dimensionally from a hot bore. Barrel stresses change, and fowling is different. You can assume away, but I'd group no less than 2hrs/shot, and exactly as you would in the field(off bipod,etc) to see cold barrel accuracy(in group form). And to see if it's simply a matter of dialing in for your gun, or whether work is needed on scope mounting/ballistics,etc. I'd also be shooting across a chronograph, every shot. It might not be a problem at all for your barrel. But I've seen huge differences in best cold barrel load -vs- best hot barrel load(especially w/regard to ES). I've had only one gun and load combo that truely shot the same either way. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
accuracy in load developement
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