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Old January 9, 2012, 01:30 PM   #4
Pointer
Senior Member
 
Join Date: April 8, 2005
Location: Utah
Posts: 2,559
The muzzle velocity and bullet weight of your ammo is absolutely critical in calculating trajectory.

Both Remington and Winchester have free online ballistic calculators for their brand ammo.

http://www.google.com/search?q=balli...ient=firefox-a

The 165 is just OK... a heavier bullet will bless you at the longer distances.
A 168 grain Match Ammo would be better.

The bulls-eye size may be different at various ranges... which will make some difference in the POI if your POA is consistent.

Depending on the target size(s), you wood possibly do well to zero at a longer distance... perhaps 300 yards or even more. This MIGHT be helpful in keeping your overall trajectory a little flatter... about 4.5" high at 100 yards should be ABOUT a 335 - 350 yard zero.

If you are shooting for "hit or miss" (like silhouettes) anywhere in the target "kill" zone... you will find a "pipe zero" (aka "point blank zero") is very effective... If you are shooting for precision for total points, a Pipe Zero is NOT the way to go.

Much depends on the sights you're using... a ballistic reticle in a scope is very good. An ammo specific turreted scope is even better. In this case, do not use pipe or Kentucky elevation corrections!! simply rely on the scope dope and keep the same POA. (Sight picture)

For now, keep it simple... you can learn more from the people around you as you go along. Just get the trajectories from the site listed below and tape it on your stock for a "kwiky" reference..

Too much crap takes the fun out of it... fall in love with the game first, then you can complicate the "marriage".

http://www.google.com/search?q=balli...ient=firefox-a
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Last edited by Pointer; January 9, 2012 at 01:55 PM.
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