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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.308 Winchester range?
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<blockquote data-quote="westcliffe01" data-source="post: 789248" data-attributes="member: 35183"><p>You might need a rather special scope for some of those ranges too...</p><p></p><p>With a 200 yard zero and 168gr boat tail bullet, you need to dial </p><p>up 37.6 min for 1000 yards 5mph cross wind = 5.1min wind hold</p><p>55.1 min for 1200 yards 5mph cross wind = 6.9min wind hold</p><p>76.8 min for 1400 yards 5mph cross wind = 8.3min wind hold</p><p>102.7 min for 1600 yards 5mph cross wind = 9.6min wind hold</p><p></p><p>Deduct 20 min off those if using a 20 minute rail, that is still more than 80min of "spare" elevation needed. That is quite a scope !</p><p></p><p>Energy level is approaching 22LR levels past 1000 yards too.</p><p></p><p>A 243 AI shooting 105gr Bergers is considerably flatter shooting and has similar energy beyond 1000 yards. Hopefully your just shooting at paper, steel or varmints ?</p></blockquote><p></p>
[QUOTE="westcliffe01, post: 789248, member: 35183"] You might need a rather special scope for some of those ranges too... With a 200 yard zero and 168gr boat tail bullet, you need to dial up 37.6 min for 1000 yards 5mph cross wind = 5.1min wind hold 55.1 min for 1200 yards 5mph cross wind = 6.9min wind hold 76.8 min for 1400 yards 5mph cross wind = 8.3min wind hold 102.7 min for 1600 yards 5mph cross wind = 9.6min wind hold Deduct 20 min off those if using a 20 minute rail, that is still more than 80min of "spare" elevation needed. That is quite a scope ! Energy level is approaching 22LR levels past 1000 yards too. A 243 AI shooting 105gr Bergers is considerably flatter shooting and has similar energy beyond 1000 yards. Hopefully your just shooting at paper, steel or varmints ? [/QUOTE]
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.308 Winchester range?
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