I’ve mentioned it before. But in a, “it happened to me story” I sent a barrel off to a reputable smith to get pin and welded. When I got it back I ran a suppressor rod through it and noticed it was not concentric. Like near baffle strike off. Sent it off to a different smith to get corrected and learned the barrel was cut correctly. It was the shims that were misaligned. Surefire muzzle device with Surefire shims. If I had to guess I’d say he just didn’t follow the Surefire instructions using the shims. Or the shims could’ve been defective.
Moral of the story, have them check with a suppressor rod first if you’re going to be using a suppressor. When I asked the original smith why he didn’t check he said he lives in a no suppressor state and thereby doesn’t have access to any.
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