I have several 16 ga guns and because a few are "vintage" I simply trim all my hulls to use in the 2 1/2" and or 2 9/16" chambers of the older guns. Doing so affords me the option of using my handloads in all of my 16s... newer and older the 2 1/2" shells work in all of my guns. (including a Win Model 12)
