Re: muzzle threading
The amount of slop you are talking about is pretty dang minimal, but when you add the cost of a stack of rods and bushings to end up with a measurement that you can't duplicate every time you set it back up....it starts to make sense. Pins, rods, centers and direct reading gauges.....they have all produced winners, but imo, only a direct measurement can be dead repeatable and account for a crooked bore.