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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Question about Sighting In & Grouping
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<blockquote data-quote="Tangent" data-source="post: 1760302" data-attributes="member: 110477"><p>Everybody has their own voodoo for barrel break-in so I won't go there.</p><p></p><p>For initial sight in, I bore sight at 100 yards. Shoot 3 (ish) then adjust to center. Shoot a minimum of 5 to confirm, but prefer a (2) or (3) 5 shot groups to be certain. During this time I'm chrono'ing to get a rough median velocity. From here, I determine initial "try" dope. Then shoot to 600 or 700 to calibrate velocity. Then shoot out to 1,400 to fine tune BC. From there I bounce between occasional paper groups and lots of positional shooting.</p><p></p><p>When shooting groups I don't let the barrel cool during the group, I just shoot.</p><p></p><p>Definitely no lead sled. Sight in and shoot groups how you intend to use the rifle. If it's a bench gun, shoot from a bench. If it's a field gun, shoot from prone. Use same front & rear rests that you would for the rifle's intended use. For me that means bipod & rear bag.</p></blockquote><p></p>
[QUOTE="Tangent, post: 1760302, member: 110477"] Everybody has their own voodoo for barrel break-in so I won’t go there. For initial sight in, I bore sight at 100 yards. Shoot 3 (ish) then adjust to center. Shoot a minimum of 5 to confirm, but prefer a (2) or (3) 5 shot groups to be certain. During this time I’m chrono’ing to get a rough median velocity. From here, I determine initial “try” dope. Then shoot to 600 or 700 to calibrate velocity. Then shoot out to 1,400 to fine tune BC. From there I bounce between occasional paper groups and lots of positional shooting. When shooting groups I don’t let the barrel cool during the group, I just shoot. Definitely no lead sled. Sight in and shoot groups how you intend to use the rifle. If it’s a bench gun, shoot from a bench. If it’s a field gun, shoot from prone. Use same front & rear rests that you would for the rifle’s intended use. For me that means bipod & rear bag. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Question about Sighting In & Grouping
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