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Long Range Hunting & Shooting
Suggestions on my group (Whats going on ?)
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<blockquote data-quote="Mike 338" data-source="post: 985028" data-attributes="member: 41338"><p>I'm not understanding the different seating depth from 100 and 200. </p><p></p><p>The only way to know if bedding is an issue is to bed it and see how it shoots. The only way to know if barrel contact is an issue is to float it (could help or hurt). That said, altering the seating depth .040" will only give you a "rough" idea of where the gun shoots best. You'll still need to fine tune it. When I find a rough seating depth the rifle kinda likes, I go .005" on each side of that and shoot. Which ever shoots best is what tells me to seat deeper or longer. I then go .005" steps till I find the best group. I then go back the other way and cut the best group and the next-to-best-group in half. Basically, fine tune the seating depth. During testing, I let the barrel cool about 3 minutes between shots and about 15 minutes between strings (just depends how cool it is outside). </p><p> </p><p>I do things in this order:</p><p></p><ol> <li data-xf-list-type="ol">Bed stock & float barrel</li> <li data-xf-list-type="ol">Do a rough seating depth test (6-shot groups)</li> <li data-xf-list-type="ol">Find Maximum Charge Weight</li> <li data-xf-list-type="ol">Find Optimal Charge Weight (OCW)</li> <li data-xf-list-type="ol">Test various primers for accuracy and/or extreme spread</li> <li data-xf-list-type="ol">Fine tune seating depth</li> </ol></blockquote><p></p>
[QUOTE="Mike 338, post: 985028, member: 41338"] I'm not understanding the different seating depth from 100 and 200. The only way to know if bedding is an issue is to bed it and see how it shoots. The only way to know if barrel contact is an issue is to float it (could help or hurt). That said, altering the seating depth .040" will only give you a "rough" idea of where the gun shoots best. You'll still need to fine tune it. When I find a rough seating depth the rifle kinda likes, I go .005" on each side of that and shoot. Which ever shoots best is what tells me to seat deeper or longer. I then go .005" steps till I find the best group. I then go back the other way and cut the best group and the next-to-best-group in half. Basically, fine tune the seating depth. During testing, I let the barrel cool about 3 minutes between shots and about 15 minutes between strings (just depends how cool it is outside). I do things in this order: [LIST=1] [*]Bed stock & float barrel [*]Do a rough seating depth test (6-shot groups) [*]Find Maximum Charge Weight [*]Find Optimal Charge Weight (OCW) [*]Test various primers for accuracy and/or extreme spread [*]Fine tune seating depth [/LIST] [/QUOTE]
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Suggestions on my group (Whats going on ?)
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