I will soon be mounting and zeroing a new scope on my .338 Mag. and was interested in how you guys zero your scopes and rifles. In the past I have always bore sighted and then made sure I was on target at 25 yards and then moved out to 50 yards and then finished at 2" high at 100 yards.
I always have made adjustments to my scopes by calculating the proper number of clicks for the range (i.e. at 100 yards a scope with 1/4 m.o.a. adjustments should move the shot group a 1/4" per click). This has worked okay, but I have only had one scope that actually moved the shot group the amount it was suppose to. With the others, I would have to mess with them until I finallly ended up where I wanted, which of course was irritating and a waste of ammo. Is this rare, do others find their scope adjustments to be accurate and consist?
Also, I was interested in finding out how many of you guys zero your rifles by firing a shot at the bullseye, then lining up the crosshairs on the bullseye, and adjusting your scopes cross hairs to your last shot taken (the prior bullet hole)? I have never tried this method, but it seems like an easier one. Is their any downside to this method over the previous one mentioned? Thanks for the help and advice.