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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity and Altitude question
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<blockquote data-quote="Greyfox" data-source="post: 938799" data-attributes="member: 10291"><p>You are not likely to see a big change, if any in muzzle velocity, but it's still advisable to re-zero when changing locations of different altitudes. The difference in the altitude/air density, will produce a lower resistance on the bullet, producing higher retained velocities at longer ranges, thus requiring a lower elevation correction at those longer ranges. a ballistic program , like Shooter will provide the corrections when the air density/altitude info is inputed for the higher elevation.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 938799, member: 10291"] You are not likely to see a big change, if any in muzzle velocity, but it's still advisable to re-zero when changing locations of different altitudes. The difference in the altitude/air density, will produce a lower resistance on the bullet, producing higher retained velocities at longer ranges, thus requiring a lower elevation correction at those longer ranges. a ballistic program , like Shooter will provide the corrections when the air density/altitude info is inputed for the higher elevation. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Velocity and Altitude question
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