by B.B. Pelletier
This post was inspired by a Pyramyd Air customer who recently returned a LaserLyte boresight device because it was 5″ off his aimpoint at 30 yards. I was flabbergasted that he got AS CLOSE to the mark as 5″ at that distance! He thought he should be CLOSER?!
Laser boresight devices are supposed to align the bore of your rifle with the sight line of your sights. They can get your rounds ON PAPER at 100 yards! They ARE NOT supposed to zero your scope.
When I was in the Army, I used to boresight 105mm M68 cannons on M60A1 tanks, because the “paper” (actually a huge 12-foot square plywood sheet) sight-in target was 1,200 yards away. With those monster rifles, we didn’t have the luxury of shooting at a small target at closer distance. Our normal targets were positioned 1,500-2,500 yards away, so 1,200 yards was considered close. We used black thread in a crosshair pattern over the 4″ muzzle and binoculars to look through the barrel from the breech. When we fired, everyone on the range helped us by watching through binoculars to see where the tracer went. The inert aluminum practice round left a perfectly circular hole in the plywood. If you saw where it went, it was easy to see the resulting hole through a 10x scope. The ammunition was expensive, plus it wore the bore rapidly, so we didn’t want to shoot more than necessary. The goal was to hit within a 24″ circle at 1,200 yards and to take as few rounds as possible to get there.