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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet BC
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<blockquote data-quote="436" data-source="post: 274165" data-attributes="member: 16609"><p>This may help you.</p><p> Go out with your load {bullet} you've picked.</p><p> Chronograph your loads; and at the same time zero your rifle at 100 yards, minimum of five shot average for velocity verification.</p><p> Then fire that same load at 1000 yards, acquiring 1000 yard zero from your 100 yard zero, counting the elevation adjustments to 1000 yards in clicks or minute, {Note; this is for LR rifles you may need to change your scope base up to 15 or 20 MOA and of course it will depend on the caliber and bullet your using as to whether your rifle can reach 1000 yards supersonic, because it "must stay" supersonic} </p><p> </p><p> Next go to your computer, bring up your ballistic program, plug in all the baseline information the on the 1000 yard zero, which would be an over lay on the program you originally ran with the programs B.C's</p><p> This "shouldn't" match up with the factory B.C…. showing more elevation needed in most case's; so increase or decrease the B.C on the program until you click's/minute adjustments program match up with want you obtained in the field. </p><p> Once they match'.., recorded the B.C used on the program you're working with</p><p> One of the other benefits is that your elevation scale in 100 yard increments should be very close to right on. Going back to 100 yards from your 1000 zero.</p><p> </p><p> I've never tried this at 500 yards, so I couldn't say whether it would or wouldn't work… correctly, it's just math so guess it should'…, but being as I'm a long range shooter, I know it works at 1k. By the way, I use both; Load from Desk and Sierra Infinity to work the number. </p><p> Good luck</p><p> 436 </p><p> Ps; I don't think I left any steps out.</p></blockquote><p></p>
[QUOTE="436, post: 274165, member: 16609"] This may help you. Go out with your load {bullet} you’ve picked. Chronograph your loads; and at the same time zero your rifle at 100 yards, minimum of five shot average for velocity verification. Then fire that same load at 1000 yards, acquiring 1000 yard zero from your 100 yard zero, counting the elevation adjustments to 1000 yards in clicks or minute, {Note; this is for LR rifles you may need to change your scope base up to 15 or 20 MOA and of course it will depend on the caliber and bullet your using as to whether your rifle can reach 1000 yards supersonic, because it “must stay” supersonic} Next go to your computer, bring up your ballistic program, plug in all the baseline information the on the 1000 yard zero, which would be an over lay on the program you originally ran with the programs B.C’s This “shouldn’t” match up with the factory B.C…. showing more elevation needed in most case’s; so increase or decrease the B.C on the program until you click’s/minute adjustments program match up with want you obtained in the field. Once they match’.., recorded the B.C used on the program you’re working with One of the other benefits is that your elevation scale in 100 yard increments should be very close to right on. Going back to 100 yards from your 1000 zero. I’ve never tried this at 500 yards, so I couldn’t say whether it would or wouldn’t work… correctly, it’s just math so guess it should’…, but being as I’m a long range shooter, I know it works at 1k. By the way, I use both; Load from Desk and Sierra Infinity to work the number. Good luck 436 Ps; I don’t think I left any steps out. [/QUOTE]
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