That’s what I was thinking too that the issue is really what you’re looking for irregular lands different sizes, Squished, large cuts out of the rifling itself, and I don’t see that.
From what it sounds like you’re saying that from that sort of rifling process you will get those marks not to mention the process for this barrel takes like 10 seconds where a top tier barrel will be like 30 minutes to an hour per barrel blank plus they stop and lap between..
So is mine a superior rock Creek barrel because it sure don’t look that shiny to me.?
The flagship of Rock Creek Barrels’ product line is the single point cut rifled barrel. These barrels are manufactured on twin spindle hydraulic Pratt & Whitney rifling machines and are available in 4H, 5R, or 8R rifling profiles. All barrels are hand lapped to superb interior finishes with compounds mixed in house. By the very nature of the way we modified these Pratt and Whitney machines, twist rates from 1:5 to 1:35+ are available and have a slight gain twist.
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I really only use my borescope to check my cleaning. Otherwise you'll start second guessing the manufacturer (and yourself) on everything. There is really no reason why any premium barrel should have dinged up lands leaving the factory anyway.
A good button rifled barrel is going to be just as accurate as a good cut rifled barrel. There are differences obviously, but that will take quite a lot of long posts to get there.