No it does not have to be a new barrel but, I now have the concern that a used barrel might be one that was tried on an older frame and did not work, then put up for sale. Also in my earlier post about a similar thread I found on google, someone posted that he had called T/C and was told the new barrels would not work on frames below #195,000.

I only put in for deer tags this year (New Mexico is now a draw only state) and since this will be my first time hunting larger game with a handgun, the calibers I was considering were 6 or 7mm TCU, 7x30 Waters and 30-30. I was also planning on getting a 338 JDJ#2 next year for elk and bear.