1 3/4 " square, BUT... on a dirty barrel you struggle to get a that size patch in, so I use a either a .270 jag or, if using the .308 jag, I offset the patch. Once most of the crap is removed I can use these patches with the .308 jag.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.