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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need some help troubleshooting horizontal grouping.
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<blockquote data-quote="VarmintBob" data-source="post: 2811901" data-attributes="member: 124886"><p>Cartridge, powder, bullet, cartridge OAL, bbl length, fired, unresized case capacity in gr of water (weigh empty case fill with water weigh again, get difference) I normally do at least 3. Some velocity with the above specs and the powder weight used for that velocity. With all that I can get a time in msec of when the bullet exits to determine how close it is to a quiet muzzle time. The target below is 5 shots from my skinny bbl 300 WM at 100 yds. It is an OBT load.</p></blockquote><p></p>
[QUOTE="VarmintBob, post: 2811901, member: 124886"] Cartridge, powder, bullet, cartridge OAL, bbl length, fired, unresized case capacity in gr of water (weigh empty case fill with water weigh again, get difference) I normally do at least 3. Some velocity with the above specs and the powder weight used for that velocity. With all that I can get a time in msec of when the bullet exits to determine how close it is to a quiet muzzle time. The target below is 5 shots from my skinny bbl 300 WM at 100 yds. It is an OBT load. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need some help troubleshooting horizontal grouping.
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