this post was submitted on 03 Oct 2025
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I recall that Jeffrod was working on a more precise method of ECM that may be similar to what you're describing. No idea where that ever landed.
There's a question I feel that should be asked more - why aren't chamber reamers used more widely as part of the "DIY barrel" process? Are these reamers unobtainable outside of the US? I recall looking at that a while ago and it did appear they could be shipped worldwide.
Seems like a high-risk item to purchase, higher-risk than any other bought component.