Re: Q: A good boresighter
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: krink85</div><div class="ubbcode-body">Vise or clamp it, or a good bipod and sand bag rear rest. Remove bolt and look down the barrel, and move the reticle to match what you are looking at. I did this yesterday and I was 1.2 mils low and .7 mils right @ 100. Best of all it was free. I imagine you can do this with just an upper with the lower removed. </div></div>
Ding! Ding! Ding!
We have a winner! Except for lever guns, M-1As, and other things you can't see through the bore on, this works great. It is, after all bore sighting.
A collimator works OK, as long as the scope isn't too far above the bore, as often occurs with modern gas operated arms.
As far as lasers that stick in the muzzle, you can still see through the scope (that's how you can sight with it); this is a disadvantage.
With a collimator, you can only see the collimator, not the target.
There are photos of a burst barrel from somebody who neglected to remove the laser from the muzzle before firing. The classic banana peel barrel, like in cartoons.
In the Schuetzen rifles that had the bullet muzzle loaded through a false muzzle, the false muzzle often had a blinder to prevent a sight picture from allowing the rifle to be fired with the false muzzle in place.
