6mm max

the 5 i have as been in the last 4 years, not counting 23 and 24. on a few other forums i've read some have had bad barrels. most have been blanks that someone else chambered, tenoned and/or crowned. not sure who to blame, but the barrel maker always gets the blame. rifling issues would be the maker, but the maker has an escape goat. i try and get all done with same maker to exclude blames elsewhere. buck stops with them!
McGowan in-house finished barrels suck donkey balls. Their blanks are fine. I have first hand experience with both and the finish work on the in-house barrel was truly horrific. Have a Carbon Six barrel that is a definite winner and yes, it's made from a McGowan blank.

I had to send two barrels back to McGowan for a refund. Photos are posted here, just do a search.
 
  • Sad
Reactions: Top O' Texas