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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why you should consider a 223 for a LR rifle
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<blockquote data-quote="Hugnot" data-source="post: 3046581" data-attributes="member: 115658"><p>Hornady .224 62 ELDM VT</p><p></p><p>Hornady site has .395 G1 BC, .199 G7 BC, Bullet length should be 1.055,</p><p></p><p>[ATTACH=full]548444[/ATTACH]</p><p></p><p>Comparing the .224 62 ELDM VT length of 1.055 with that of the 68 .224 HpBt length of .917 makes me think there is a large void under the plastic tip or an extended plastic tip. Looking at the Miller Sg estimator the plastic tip length is subtracted from the bullet OAL for running the estimator -( 1+ ((B22-B23)/B20^2)). Continuing on with assuming the plastic point is weightless, I am making an assumption that the bullet OAL might be shortened slightly more like .2 inches vs. .14 inches, or .06 inches. This increases the Sg from 1.33 to 1.52.</p><p></p><p>Worth a try out of our 9 twist .223 @ 3200 fps at 300 yards on a nippy day. If not, my 7.7 twist .22-.250 should work provided 336 K plus RPM's don't cause bullet failure.</p><p></p><p>[ATTACH=full]548443[/ATTACH]</p></blockquote><p></p>
[QUOTE="Hugnot, post: 3046581, member: 115658"] Hornady .224 62 ELDM VT Hornady site has .395 G1 BC, .199 G7 BC, Bullet length should be 1.055, [ATTACH type="full"]548444[/ATTACH] Comparing the .224 62 ELDM VT length of 1.055 with that of the 68 .224 HpBt length of .917 makes me think there is a large void under the plastic tip or an extended plastic tip. Looking at the Miller Sg estimator the plastic tip length is subtracted from the bullet OAL for running the estimator -( 1+ ((B22-B23)/B20^2)). Continuing on with assuming the plastic point is weightless, I am making an assumption that the bullet OAL might be shortened slightly more like .2 inches vs. .14 inches, or .06 inches. This increases the Sg from 1.33 to 1.52. Worth a try out of our 9 twist .223 @ 3200 fps at 300 yards on a nippy day. If not, my 7.7 twist .22-.250 should work provided 336 K plus RPM's don't cause bullet failure. [ATTACH type="full"]548443[/ATTACH] [/QUOTE]
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Why you should consider a 223 for a LR rifle
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