I wouldn't bother with a laser bore sighter, as I find them pretty much useless, in that I haven't seen one yet that would reliably have you on the paper at 100 yards for the first shot. However, when using my collet type, optical boresighter, I am almost always on the paper at 100 yards, with the first shot. I have used my own boresighter literally hundreds of times for myself and for other shooters at the range, and it has paid for itself several times over in ammunition saved, since I don't bother starting at 25 yards or 50 yards like most people.