acmetim,

I have not had to resize yet. The Barnes 250 TEZ's I give a slight knurl to fit a bit more snug. I have a pack of 300 grain Match Hunters on there way and they are supposed to be perfect out of the pack for these McGowan barrels. I have looked and those dies and can not make up my mind on smooth vs full form either. I do have the barrel drop for mine so I could get a full form but with a smooth die I could use it on multiple guns???

And I say pull the trigger on getting a McGowan barrel, you wont be sorry!