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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lets Talk Stepped BC's
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<blockquote data-quote="ken snyder" data-source="post: 534940" data-attributes="member: 26019"><p>I'm not an expert but I do shoot milk jugs at 1800yd. (only 1 out of 17 average ). There are only 2 BC's: supersonic and subsonic. All of the stepdowns are because the bullet does not match the standard profile worth a hill of beans. I feel that for ELR you need do figure out what your actual supersonic and subsonic BC is (out of your barrel). It doesn't matter what the bullet is rated at because they all swage up differentently in different barrels and at ELR small differences are tremendously large. Place a heavy metal plate in front of your second chronograph, find the distance that equals the last of supersonic velocity and then go out another 200yds. for subsonic. Now there is no more step up, down, sideways or inside-out BC popcorn balls. BC is a marketing substitute for shinola.</p></blockquote><p></p>
[QUOTE="ken snyder, post: 534940, member: 26019"] I'm not an expert but I do shoot milk jugs at 1800yd. (only 1 out of 17 average ). There are only 2 BC's: supersonic and subsonic. All of the stepdowns are because the bullet does not match the standard profile worth a hill of beans. I feel that for ELR you need do figure out what your actual supersonic and subsonic BC is (out of your barrel). It doesn't matter what the bullet is rated at because they all swage up differentently in different barrels and at ELR small differences are tremendously large. Place a heavy metal plate in front of your second chronograph, find the distance that equals the last of supersonic velocity and then go out another 200yds. for subsonic. Now there is no more step up, down, sideways or inside-out BC popcorn balls. BC is a marketing substitute for shinola. [/QUOTE]
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Lets Talk Stepped BC's
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