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Posted: 9/16/2003 3:43:13 PM EDT
I have a M4 w/14.5" barrel with perm attached Vortex and was wondering about zeroing at 25M to get the IBZ for 50M.
Will I need for the round to Impact 1" below the point of aim to be on target for the 50/200M
Zero, or what?
I don't have access to the 50M range at this time, so I have to use the 25M range for now.
Thanks for any help!

Link Posted: 9/16/2003 6:32:12 PM EDT
btt I refuse to beleive that there isn't someone out there that can answer this question.
Link Posted: 9/16/2003 6:45:37 PM EDT
Somewhere between 1.0" and 1.5" (1.2" actually) low at 25m is a good ballpark. Just ran it through the ballistics program guestimated using 55gr. projectile @ 3000fps.
Link Posted: 9/16/2003 6:47:20 PM EDT
Don't know the answer top your question, but this site might help. http://groups.msn.com/TheMarylandAR15ShootersSite/zeroingmethods.msnw
Link Posted: 9/17/2003 9:44:41 AM EDT
I want to thank you for your help! I ended up zeroing it to hit at 1" low at 25M and later this week I'll be able to zero at 50M and then 200M. Thanks again! JD
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