orwapitihunter
Well-Known Member
Edd,
I don't really understand why you would want that done as a separate step. Determining location of, marking, and timing probably adds less than a half hour to the chamber job. But if you want me to do only that. I would figure an hour to indicate the barrel as to how I would do it to cut a chamber, take my measurements at the muzzle, and mark the barrel. $20 to $30.
As to reasons I would reject a blank...
1. Bore dimension variation.
2. Visually detectable variation/defect of internal surfaces.
3. External defects that aren't easily corrected.
4. Caliber, twist, length or conture not as ordered.
5. Excessive run out of external surface.
Of these I have rejected blanks for #1 and #4.
I had a cheap blank that I was playing with that had quite a bit of run out. Think of a jump rope type thing when between centers. But at $70 my standard was pretty low. And the dang thing had no problem shooting 1/2 moa. And it held POI as it heated up.
I don't really understand why you would want that done as a separate step. Determining location of, marking, and timing probably adds less than a half hour to the chamber job. But if you want me to do only that. I would figure an hour to indicate the barrel as to how I would do it to cut a chamber, take my measurements at the muzzle, and mark the barrel. $20 to $30.
As to reasons I would reject a blank...
1. Bore dimension variation.
2. Visually detectable variation/defect of internal surfaces.
3. External defects that aren't easily corrected.
4. Caliber, twist, length or conture not as ordered.
5. Excessive run out of external surface.
Of these I have rejected blanks for #1 and #4.
I had a cheap blank that I was playing with that had quite a bit of run out. Think of a jump rope type thing when between centers. But at $70 my standard was pretty low. And the dang thing had no problem shooting 1/2 moa. And it held POI as it heated up.
