Most of the posts I see here on this thread are not about a thousandth of an inch or winning a championship. you are correct about bench rest shooting and your style has to be adhered to. But how many shooters compete in bench rest out of all the shooters? Black Hills makes some of the most accurate ammo in the world with crimped bullets. If you are worried about deforming a bullet with a crimp what about the rifling cutting grooves in the bullet at 60K PSI with the tremendous heat from the powder burning? What I stated has nothing to do with bench rest being it is way to anal for me lol. I truly respect the guys that do it and their passion.