I have a Sig 229 .40s&w and I have noticed these swirl type marks on the barrel itself. These marks are not grooved in, but are as smooth as the rest of the barrel is. I have noticed them mostly on my Sig, but I have a Glock 19c which has some slight swirl type marks as well.
Any ideas what these smooth swirl marks come from? Any ideas how to prevent them? How to remove them?
Thanks
Any ideas what these smooth swirl marks come from? Any ideas how to prevent them? How to remove them?
Thanks