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Old 04-25-2012, 11:09 PM   #11
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Thanks guys for all the information, I'll take into account everyone's opinion and figure out which would be best



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Old 04-26-2012, 12:11 AM   #12
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I'm curious why my ballistic calculator shows a 62 grain 5.56 bullet that is zeroed at 50 yards for the near zero drops back below at around 150 yards.... Anyone have an idea? No windage.



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Old 04-26-2012, 12:19 AM   #13
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Quote:
Originally Posted by Todd_
I'm curious why my ballistic calculator shows a 62 grain 5.56 bullet that is zeroed at 50 yards for the near zero drops back below at around 150 yards.... Anyone have an idea? No windage.
Just looked, the bullet is at -2.11 inches at 200 yards... So this 50/200 doesn't mean near zero/far zero, or am I using the wrong load?

I think it's still a great way to zero, the bullet peaks at about half an inch above at it's peak and drops slowly to the 2" mark at 200 yards, I just assumed that 50/200 meant near/far zeroes. Bah!
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Old 04-26-2012, 03:08 AM   #14
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Quote:
Originally Posted by Todd_ View Post
Just looked, the bullet is at -2.11 inches at 200 yards... So this 50/200 doesn't mean near zero/far zero, or am I using the wrong load?

I think it's still a great way to zero, the bullet peaks at about half an inch above at it's peak and drops slowly to the 2" mark at 200 yards, I just assumed that 50/200 meant near/far zeroes. Bah!
Your about right. The calcs I use are based on a 55gr 1/7 twist and I shoot 55gr, 62gr and 77gr from a 1/9. I am not seeing that great difference in real life shooting. Sitting at a bench off a sand bag isnt my style of shooting.
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Old 04-26-2012, 04:32 PM   #15
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Just looked, the bullet is at -2.11 inches at 200 yards... So this 50/200 doesn't mean near zero/far zero, or am I using the wrong load?...
Maybe wrong load or barrel length. I believe the 50/200 meter zero is for the military M855 round fired from an M16, not a shorter barrel. And it's really more like 41/200 meters though at most civilian ranges we tend to zero at 50 yards.
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Old 04-28-2012, 12:43 PM   #16
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I like to zero all my rifles using mpbr. I zeroed me ar at 250. It allows me to shoot at anything from the muzzle out to about 300 yards without any compensation for drop. It works really well for hunting. I allow a +2-2 but you can find some calculators online which will allow you to find a different zero if you need it more accurate.



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