Yea, it would help if they'd make the semi-rim the proper thickness. I make my 6.5 Japanese from Krag or .303 brass, so that I have the right dimension. Lots of people get along shooting the undersized stuff, but I'll take all the material between me and the high pressure gases I can get. At least some of this newer brass is closer to the proper dimensions than the old Norma stuff.
"I have sworn upon the Altar of God, eternity hostility upon all forms of tyranny over the minds of man." - Thomas Jefferson