A local reloading buddy bought a used, custom 6MMbr rifle and Redding custom competition dies. The chamber size is stamped on the bbl at .262. He has no live ammo, but a few spent cases from the previous owner.
New, uncut Lapua brass with a bullet seated will not chamber, neck measures .270. Empty brass will seat with some difficulty, but grow back to .270 after seating. It wasn't surprising to see the previous owner had neck turned his brass, with the naked eye the walls are thinner (both Lapua).
A. Would you have the chamber reamed to "normal" size, what would normal be? Or would you turn necks? Besides the hassle and thinner brass walls, is there another consequence? Brass life?
B. He needs a bushing for the Redding neck sizer. The direction call for measuring a loaded round, which we don't have, and go .001-.002 under. Knowing only the chamber dimensions, how much smaller should the neck bushing be?
New, uncut Lapua brass with a bullet seated will not chamber, neck measures .270. Empty brass will seat with some difficulty, but grow back to .270 after seating. It wasn't surprising to see the previous owner had neck turned his brass, with the naked eye the walls are thinner (both Lapua).
A. Would you have the chamber reamed to "normal" size, what would normal be? Or would you turn necks? Besides the hassle and thinner brass walls, is there another consequence? Brass life?
B. He needs a bushing for the Redding neck sizer. The direction call for measuring a loaded round, which we don't have, and go .001-.002 under. Knowing only the chamber dimensions, how much smaller should the neck bushing be?