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need some help zeroing a .221
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I'm using factory 50 grain ammo.

a ballistic chart shows the following:

velocity
2800
2137
1580
1180
0 through 300 yards

trajectory
0
-7
-28
100 through 300 yards

what is a good 100 yard zero?

and, I have to sight the rifle at 50 yards due to space and time limitations- how do I get the 100 yard zero at 50 yards? In other words, how high at 50 do I zero to get the 100 yard zero?

thanks.
 
Posts: 3314 | Location: NYC | Registered: 18 April 2005Reply With Quote
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tin

Here's a ballistic calculator that you can use to do all your own figgeren.

http://www.eskimo.com/~jbm/ballistics/traj_basic/traj_basic.html

Ray


Arizona Mountains
 
Posts: 1560 | Location: Arizona Mountains | Registered: 11 October 2004Reply With Quote
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done it, thank you.
 
Posts: 3314 | Location: NYC | Registered: 18 April 2005Reply With Quote
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