Re: 7mm Short Action Ultra Mag reamer specs
I shoot the 162 Amax in mine, a Douglas barreled Savage cut with a standard reamer.
My reloads are also around .314 neck diameter, the neck diameter of my fired brass is .319 ish so that would be in line with the .321 reamer spec.
I seat my bullets so they are .007 off the lands, unfortunatly that makes them about .025 to long to fit in the magazine. I could shorten that up a bit but they shoot so well that I don't want to change a thing.
Ignorance can be treated with education, sadly there is no cure for stupidity.