You learn something new every day. I received my Lee Pace setter set in 7.62X54 today. The instructions clearly says it is for .308, and if your bore diameter is .311, you can order an accessory for $3 plus S&H. I sized a shell, and the .308 Hornaday SP did not fall through the neck, so it did size it to .308. Then I also took some of the casings I had sized from the handloader (which also says .308) and the .308 bullet fell through. I took a .303 bullet (.311) 180 grain Winchester from Midway and it did not fall through the neck of the handloader sized casings. So it seems that the handloader necksizes in for .311. I will slug the bore on my mosins to see which one will take a .308. Thanks for all your help.