Good day all.
The other day while sorting through my reloading stuff I noticed my M die for 8mm is marked 32. The one I had for .303 British I was sure was marked 31, but when looking at it I see it is stamped 30R on top of the adjusting screw for the expander plug.
The plug measures .307inch and then steps to .311 like you would expect for a .30-06 or .308
Lyman's online info doesn't list a die marked 30R, only 30S and 30L and the die they list for .303 is called 31L as I expected.
My question for the forum is does anyone know what I have here? TIA