Originally Posted by
Omega218er
Sorry about the pictures as they aren't the best. The striations are quite consistent from each other meaning the spacing is very consistent. I had a gunsmith look at it today and he stated it looked as if it had not been shot much at all and that he has seen some T/C barrels look like this.
So my two options are to shoot as is or rebore it. Talking to Bob Hoyt today he will charge $125 to rebore it to .54 and 1/60 twist. Open to opinions.
Mark
Well... If it wasn't done by some one who used the wrong size jag and your Smith doesn't feel it's a problem, then SHOOT IT!! Being a machinist all my life... I'm gonna say it's possibly a tool mark left behind by a reamer getting dull that picked up a chip on it's way out. The barrel probably went through it's final honing process after that and QC either decided it was insignificant and let it pass or flat out missed it.
I say shoot with it for a bit, you already know what it's gonna cost if you want to have it re-bored.
BPS