When I first got my borescope I wanted to toss out every barrel I had from new custom tubes to factory guns. You have to take borescope pics with a giant plate full of grains of salt, there's info there, but you can see some ugly things on even new best rep custom barrels. If the rifle won't shoot that's one thing, otherwise I use it more for throat monitoring and cleaning eval. It's also good for checking out used guns for a purchase, or even new there's some ugly things in factory barrels these days. Some guys take really good care of their guns and you can have a beautiful gun with a shot out barrel, or one damaged by years of poor cleaning habits.
I scoped a custom 22 handgun barrel that from the pictures you'd toss it in the trashcan, but it would hold 0.5" groups at 50yds with Eley Match out of a rest. Same is true for a lot of the old M41 barrels, but they perform amazing.
My JP barrel had rust/pits out of the box but shot very well.
I will say that 716 looks like odd, I've never seen smoothed "chips" like that
One thing I've found is that manufacturers factory and custom do not consider barrel scope issues significant, if the barrel shoots reasonably they don't care what the throat, crown, pitted, rusted, etc. look like.
I scoped a custom 22 handgun barrel that from the pictures you'd toss it in the trashcan, but it would hold 0.5" groups at 50yds with Eley Match out of a rest. Same is true for a lot of the old M41 barrels, but they perform amazing.
My JP barrel had rust/pits out of the box but shot very well.
I will say that 716 looks like odd, I've never seen smoothed "chips" like that
One thing I've found is that manufacturers factory and custom do not consider barrel scope issues significant, if the barrel shoots reasonably they don't care what the throat, crown, pitted, rusted, etc. look like.
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