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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BC numbers for 142 long range accubond
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<blockquote data-quote="BallisticsGuy" data-source="post: 1309355" data-attributes="member: 96226"><p>I don't know where you're getting your BC numbers from but it's nowhere near what it should be. Nosler shows .719 G1 and .291G7. Now then...</p><p></p><p>BC varies with velocity and drag becomes much less severe with altitude so I'd need your MV and the elevation range you plan to hunt in in order to give a really good answer. The best way is to go out and do some 700yrd shooting at your hunting elevation, get your drops and use that to back into the averaged BC that matches. It matters most at the long end anyway. </p><p></p><p>I would personally go ahead and use .719 myself based on my experiences with the 7mm 168gn LRAB with regard to advertised BC versus real world results. I shot a box of them in a long range match, did very well. Had no trouble using indicated elevation corrections from 200-1000m with my ballistics apps (ballisticxlr.com and KAC BulletFlight M) using their advertised G1 number.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 1309355, member: 96226"] I don't know where you're getting your BC numbers from but it's nowhere near what it should be. Nosler shows .719 G1 and .291G7. Now then... BC varies with velocity and drag becomes much less severe with altitude so I'd need your MV and the elevation range you plan to hunt in in order to give a really good answer. The best way is to go out and do some 700yrd shooting at your hunting elevation, get your drops and use that to back into the averaged BC that matches. It matters most at the long end anyway. I would personally go ahead and use .719 myself based on my experiences with the 7mm 168gn LRAB with regard to advertised BC versus real world results. I shot a box of them in a long range match, did very well. Had no trouble using indicated elevation corrections from 200-1000m with my ballistics apps (ballisticxlr.com and KAC BulletFlight M) using their advertised G1 number. [/QUOTE]
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BC numbers for 142 long range accubond
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