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Long Range Hunting & Shooting
Problems with 300wsm groups
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<blockquote data-quote="rscott5028" data-source="post: 481546" data-attributes="member: 24624"><p>Each rifle is different. Heavier and premium custom barrels tend to be less particular about cooling. A good, stress releived barrel doesn't much care about a lot of cooling time (doesn't even have to be a heavy barrel) although you can certainly abuse one. </p><p> </p><p>Heat can induce a couple of things. One is a simple POI shift which remains constant once the barrel is fouled and up to temp. The other is groups opening up. </p><p> </p><p>3, 4, or 5 shots should be enough to tell how you are grouping. Whatever pace you're shooting at, if you have a sub-MOA group, but the group shifted in a different direction, then you'll want to account for why that occured. </p><p> </p><p>wind</p><p>sun</p><p>mirage</p><p>shooter</p><p>shooting position/rest</p><p>loose scope base</p><p>poor scope tracking</p><p>paralax</p><p>barrel</p><p>ammo</p><p> </p><p>The list goes on. </p><p> </p><p>-- richard</p></blockquote><p></p>
[QUOTE="rscott5028, post: 481546, member: 24624"] Each rifle is different. Heavier and premium custom barrels tend to be less particular about cooling. A good, stress releived barrel doesn't much care about a lot of cooling time (doesn't even have to be a heavy barrel) although you can certainly abuse one. Heat can induce a couple of things. One is a simple POI shift which remains constant once the barrel is fouled and up to temp. The other is groups opening up. 3, 4, or 5 shots should be enough to tell how you are grouping. Whatever pace you're shooting at, if you have a sub-MOA group, but the group shifted in a different direction, then you'll want to account for why that occured. wind sun mirage shooter shooting position/rest loose scope base poor scope tracking paralax barrel ammo The list goes on. -- richard [/QUOTE]
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Problems with 300wsm groups
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