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Hunting
Extreme Long Range Hunting & Shooting (ELR)
.223 to a Mile?
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<blockquote data-quote="BallisticsGuy" data-source="post: 1318100" data-attributes="member: 96226"><p>Not to be a jerk but have you any real extreme range experience with .223? </p><p></p><p>Reason I ask so bruskly is it's not possible to do what OP wants with those medium range bullets you're talking about and I'd hate for him to get confused by incorrect advice. </p><p></p><p>FWIW 68/69 class bullets from nosler and sierra run BC's around .310 G1 and velocities you get from them are not super high compared to the 70-75gn bullets, around 3050fps. So there's like 100fps velocity advantage but the BC disadvantage is enormous and can't be made up for, even with .22Nosler velocities. The transonic zone for those 68/69 bullets and any bullet with that low of a BC is around 700m (770yrds) given a 3050fps MV and standard air conditions at 500ft above sea level. What you're advising him to do will exactly cause him to fail any attempt because you have him running out of supersonic steam 200-300yrds early of the earliest time that that would be acceptable.</p><p></p><p>The Berger 70gn VLD runs a .375 G1 BC which will let it get to 900m (~1000yrds) based on a 3000fps MV but not really much further unless it's stupid hot air or very high up so the air thins. 75gn A-Max runs a wicked high .432 G1 BC which means it'll cross into transonic around 1000-1100m (1100-1200 yrds) from 2950fps MV and the Hornady BTHP 75gn does it at 1000-1100 with a .395 G1 BC and a 2950FPS MV. The 73gn ELD-M can be driven easily to 2950fps in my experience and has a .398 G1 BC which puts them right between a A-Max and a Berger VLD, meaning you'll tag transonic zone around 1100-1200yrds. Hornady's own BTHP 69gn match bullet would run out of supersonic steam right before 1000yrds. </p><p></p><p>68/69 class are great NRA High Power competition bullets. They'll go across the course and are inexpensive but after 600m they're the wrong bullet.</p></blockquote><p></p>
[QUOTE="BallisticsGuy, post: 1318100, member: 96226"] Not to be a jerk but have you any real extreme range experience with .223? Reason I ask so bruskly is it's not possible to do what OP wants with those medium range bullets you're talking about and I'd hate for him to get confused by incorrect advice. FWIW 68/69 class bullets from nosler and sierra run BC's around .310 G1 and velocities you get from them are not super high compared to the 70-75gn bullets, around 3050fps. So there's like 100fps velocity advantage but the BC disadvantage is enormous and can't be made up for, even with .22Nosler velocities. The transonic zone for those 68/69 bullets and any bullet with that low of a BC is around 700m (770yrds) given a 3050fps MV and standard air conditions at 500ft above sea level. What you're advising him to do will exactly cause him to fail any attempt because you have him running out of supersonic steam 200-300yrds early of the earliest time that that would be acceptable. The Berger 70gn VLD runs a .375 G1 BC which will let it get to 900m (~1000yrds) based on a 3000fps MV but not really much further unless it's stupid hot air or very high up so the air thins. 75gn A-Max runs a wicked high .432 G1 BC which means it'll cross into transonic around 1000-1100m (1100-1200 yrds) from 2950fps MV and the Hornady BTHP 75gn does it at 1000-1100 with a .395 G1 BC and a 2950FPS MV. The 73gn ELD-M can be driven easily to 2950fps in my experience and has a .398 G1 BC which puts them right between a A-Max and a Berger VLD, meaning you'll tag transonic zone around 1100-1200yrds. Hornady's own BTHP 69gn match bullet would run out of supersonic steam right before 1000yrds. 68/69 class are great NRA High Power competition bullets. They'll go across the course and are inexpensive but after 600m they're the wrong bullet. [/QUOTE]
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.223 to a Mile?
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