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Rifles, Reloading, Optics, Equipment
Specialty Handgun Hunting
Ballistic Apps
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<blockquote data-quote="JustMe2" data-source="post: 2888582" data-attributes="member: 42494"><p>Buttermilk, you seem to understand ballistics apps inputs, so it may not be a bad input except for velocity. We've been having some exceptionally hot weather lately. Powder consistently starts spiking above 80F. When powder spikes, it causes more pressure and higher velocities, also stiff bolt lifts. Higher velocities will cause your bullet to strike the target lower at closer ranges due to the bullet still climbing in its arc. Higher velocity causes the bullet arc to be flatter and not arc as much so it will impact lower at close distances. Where this bullet climb ends and the bullet starts falling depends on the cartridge (.22LR, 300WM), bullet weight, BC, muzzle velocity, scope height, picatinny rail angle, etc. So, your lower impacts may be due to letting your ammo get hot on your bench or in your hot rifle chamber, etc. and you're getting higher velocities.</p></blockquote><p></p>
[QUOTE="JustMe2, post: 2888582, member: 42494"] Buttermilk, you seem to understand ballistics apps inputs, so it may not be a bad input except for velocity. We've been having some exceptionally hot weather lately. Powder consistently starts spiking above 80F. When powder spikes, it causes more pressure and higher velocities, also stiff bolt lifts. Higher velocities will cause your bullet to strike the target lower at closer ranges due to the bullet still climbing in its arc. Higher velocity causes the bullet arc to be flatter and not arc as much so it will impact lower at close distances. Where this bullet climb ends and the bullet starts falling depends on the cartridge (.22LR, 300WM), bullet weight, BC, muzzle velocity, scope height, picatinny rail angle, etc. So, your lower impacts may be due to letting your ammo get hot on your bench or in your hot rifle chamber, etc. and you're getting higher velocities. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Specialty Handgun Hunting
Ballistic Apps
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