Home Forums Hunting & Shooting Ask The Gunwriters concentricity problems caused by seating

I always suggest that the way to remove any inaccuracies in a standard 7/8" seater is to go to an arbor press, and Wilson dies.



It removes the influence of any potential inaccuracies of the axis of the press's threads, slop in the cencentricity of the die and its threads, tolerances between the threads of the die and the press, flex of a non O-frame press, etc. It has a tight-tolerance chamber which is indexed of the seater-stem's pilot hole--a seater you can swap for either a standard, or VLD style bullet. As a bonus-if your pursuit of accuracy finds you tiring of factory chambers and having custom barrels installed by a decent gunsmith, you can have the dies dimensions cut the same as your chamber, further refining the fit.

I think it provides a more positive and consistent seating depth, as it has a definite, hard-stop, and is not influenced by any potential lash of the ram and lever, or flex in a press.

Lastly, the portability of the whole system allows you to easily develop loads at the range bringing little more than what's shown in the photo.