Last edited by markm; 03-05-24 at 06:31.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Not sure. I'm no barrel expert. I really don't want to go down the bore scope worm hole. I was guessing maybe some fire cracking/roughing of the first inch of rifling raises some material on the lands?
At this point, I'm still thinking of adding the reamer to remove all chamber concerns in all my non-Colt barrels. If only the Minnies barrel failed the pin gauge, I'd consider the case closed, but now I'm still puzzled.
Last edited by markm; 03-05-24 at 10:52.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Many barrels are not as straight as most people would think.
I expect that you may be measuring copper buildup, and maybe some less than straight barrels.
Last edited by markm; 03-05-24 at 12:03.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
I remember from somewhere that .22 lr's are reputed to develope a carbon ring just in front of the chamber you are supposed to deliberately attack every now and then. Don't know about centerfire....
Carbon ring in centerfire is in the leade area I believe. This gauge wouldn't catch that. But I did try cleaning the hell out of the barrel.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
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