I know the conventional wisdom will tell you that you should dial up for each shot but to be honest, for alot of shooters and hunters, using a ballistic reticle for hold over is a much better system depending on the range you will be shooting and the chamber of your rifle.
Let me explain. For me personally, it is very unnatural for me to dial up for each shot. As such, for big game hunting I do not do it at all. I feel for big game hunting you can be plenty accurate using a ballistic reticle for hold over without ever touching your turrets and thus never taking the chance of loosing your zero in the field or missing your shot because you forgot the clicks.
With my rifles, most of them Allen Magnums, I can sight most of them to impact 2" to 2.5" high at 100 yards and then using a standard mil dot reticle, I have reference hold points from the muzzle to 1000 yards without ever toughing the adjustments.
Last year during big game season I took animals at 305 yards, 588 yards, 605 yards, 645 yards, 728 yards and 850 yards and never once touched my adjustments.
THis works very well with some range practice, a good knowledge of your rifles trajectory and a good scope and rifle.
Limtis to this is range, for over 1000 yard shooting or hunting, it really does not work well to use a ballistic reticle simple because the window of ranges you can cover with the reticle really narrows once the range gets past 1000 yards.
A 10" target is in serious danger using a ballistic reticle on a properly set up rifle out to 1000 yards, which covers pretty much all big game species.
If you find dialing up for your shots unnatural, I would recommend you give a ballistic reticle a try. If your interested I can offer you what scopes I use for more detail. If not, remember those clicks and even more important, remember to return to zero after the shot!!!
Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.
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