need a neck sizing base for rem. 6mm and also need bushings for .271 .272 loaded round . i think that .268 .269 should work if anyone thinks differnt please advise .
thanks

If you use Winchester brass you will find it is thinner. I use .268 for Remington brass and .266 for Winchester brass.

If you have a 7X57 and .257 Roberts get bushings for them too.

Be aware that brass fired in large chambers in factory rifles sometimes do not work in Wilson seaters or sizers.
Translation: Do not blame Wilson if your fat brass does not work. It is your oversize chamber that is at fault.