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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BC help
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<blockquote data-quote="Ridge Runner" data-source="post: 461102" data-attributes="member: 951"><p><strong>Re: finding my bc</strong></p><p></p><p>not an expert but heres what works for me</p><p></p><p>sight in at 300 yards</p><p>very carefully shoot a group at 400, 500, 600 (use a big target)</p><p>measure actual drops</p><p>open up your program and tweak the BC until your chart matches the drops</p><p></p><p>to tune it even closer the next session shoot at 500,600,700 yards</p><p>this method has worked well out to 1300 yards for both rifles that I tested it with.</p><p> When I started I was shooting a 160 accubond, at 3575 fps, I was always 1.25 moa high</p><p> after moving the BC from .531 to .62, I'm right on out to beyond 1K</p><p>RR</p></blockquote><p></p>
[QUOTE="Ridge Runner, post: 461102, member: 951"] [b]Re: finding my bc[/b] not an expert but heres what works for me sight in at 300 yards very carefully shoot a group at 400, 500, 600 (use a big target) measure actual drops open up your program and tweak the BC until your chart matches the drops to tune it even closer the next session shoot at 500,600,700 yards this method has worked well out to 1300 yards for both rifles that I tested it with. When I started I was shooting a 160 accubond, at 3575 fps, I was always 1.25 moa high after moving the BC from .531 to .62, I'm right on out to beyond 1K RR [/QUOTE]
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