is necessary if firing factory ammo or new unformed cases. This is another reason other than being incapable of setting the origional barrel back,,,for NOT reaming to Ackley Improved for a rimless round. The RIMMED rounds never need a 'crush fit', and only need to be properly sized for light contact of shoulder on future firings after the initial fireform shot. And,,the initial shot is headspaced by the rim of the case, and the rim recess in the barrel face. Rimmed cases are the way to go if you want an Ackley in a hinge barrel rifle. I really enjoyed my Handi 30/30AI while I had it,,great little rifle that would touch the first three rounds at 100 yds. If you want a rimless round to Ackley Improve,,use a bolt action rifle with its inherent camming ability-best for the first round fireform shot and "crush" fit. I've made and had several Ackleys,,,and the only reason I needed was,,,,," I want one".
alan in ga.