Re: US Optics Boresighter
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: s.i.t.</div><div class="ubbcode-body">No offence to the bore sighter users but why doesn't anyone ever use the look through bore and zero scope that way? Never failed for me. It only gets u on paper either way </div></div>
Lots of people do that but what if you are swaping scopes between rifles, or need to take the scope off the rifle to work on one or the other. The boresighter allows you to go right back to the zero that you had previously established the last time that scope was on the gun. That can be done in your garage, instead of having to look down the bore at the range or in the field.
I make a notation in my data books exactly where on the grid the crosshair needs to be for my 100 yard zero's
JRose: I use USO rings on my .260 which are windage adjustable. Optically centering the reticle and then steering the scope to center (on paper) using the rings will maximize windage both left and right, AND maximize elevation.
Edited: i haven't come across a rifle yet where i could set an optically centered scope into a set of good quality rings on a one piece base(my Surgeon included), and have correct windage at 100 yards. It is always off to one side or the other. I think everybody knows this but unless you count windage in either direction after zeroing, there isn't a number in your head. The bore sighter is graphic in that sense.