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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Novice Question on Rifle Performance
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<blockquote data-quote="winmag" data-source="post: 750070" data-attributes="member: 22166"><p>Google JBM Ballisitics calculator, & enter your cal, bullet weight, b.c., muzzle velocity, altitude, temp, & zero range.</p><p>To keep it simple, remember 3 basic criteria</p><p>1800 fps min (for most, not all) bullets to properly expand</p><p>1500 ft lbs energy min recommended for Elk size critters</p><p>1100-1000 ft lbs energy min recommended for Deer size critters</p><p>Remember these are Basic, Generally accepted numbers. They are not absolute nesicities. Bullet choice for intended purpose/critter, is a crucial factor.</p><p>(I love my 180 Accubonds @3100 MV out to 750-850yds from my 300WSM)! A 200gr Accubond @ 2900 fps MV will getcha closer to 1k with less wind drift, more velocity, & more energy</p><p></p><p>JBM is free. It's really a handy tool for giving you a good idea of energy, velocity, & drop.</p><p>It's not perfect, but it'll getcha real close.</p><p>You'll have to record your own actual velocities & drops in the field to perfect your data, but JBM will get you real real close out to 1k or so on steel, or paper.</p></blockquote><p></p>
[QUOTE="winmag, post: 750070, member: 22166"] Google JBM Ballisitics calculator, & enter your cal, bullet weight, b.c., muzzle velocity, altitude, temp, & zero range. To keep it simple, remember 3 basic criteria 1800 fps min (for most, not all) bullets to properly expand 1500 ft lbs energy min recommended for Elk size critters 1100-1000 ft lbs energy min recommended for Deer size critters Remember these are Basic, Generally accepted numbers. They are not absolute nesicities. Bullet choice for intended purpose/critter, is a crucial factor. (I love my 180 Accubonds @3100 MV out to 750-850yds from my 300WSM)! A 200gr Accubond @ 2900 fps MV will getcha closer to 1k with less wind drift, more velocity, & more energy JBM is free. It's really a handy tool for giving you a good idea of energy, velocity, & drop. It's not perfect, but it'll getcha real close. You'll have to record your own actual velocities & drops in the field to perfect your data, but JBM will get you real real close out to 1k or so on steel, or paper. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Novice Question on Rifle Performance
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