The 1894 .357CBL is a Ballard groove cut. I have 3 CBLs in 24" and one in 20" and they are all Ballard. Generally the micro groove barrels say that on the barrel. I think my 39A says so on side of barrel. I can't look at it right now because I am away from home, but pretty sure.
MarlinOwners.com is a community of Marlin Firearm Owners - Dedicated to discussing Marlin Firearms, Marlin Rifles and more. Pictures, help, discussions and more.