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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Could I be losing 350-400 fps in my rifle vs factory ammo published data
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<blockquote data-quote="JakeL" data-source="post: 1005673" data-attributes="member: 76526"><p>That requires an accurate chronograph. What I would do is just shoot a bunch at various ranges and then plug numbers into a ballistic calculator until they fit. I think if you try a muzzle velocity around 5% lower than listed, then subtract 25 fps per inch your barrel is shorter than 26", then use a BC around .43, you will hopefully find the ballistic charts are making sense and matching up to your bullet drop results. Hopefully... </p><p></p><p>Or if you have a friend with a chronograph that simplifies things.</p></blockquote><p></p>
[QUOTE="JakeL, post: 1005673, member: 76526"] That requires an accurate chronograph. What I would do is just shoot a bunch at various ranges and then plug numbers into a ballistic calculator until they fit. I think if you try a muzzle velocity around 5% lower than listed, then subtract 25 fps per inch your barrel is shorter than 26", then use a BC around .43, you will hopefully find the ballistic charts are making sense and matching up to your bullet drop results. Hopefully... Or if you have a friend with a chronograph that simplifies things. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Could I be losing 350-400 fps in my rifle vs factory ammo published data
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