https://thegreatmodel8.net/

What years were the M8 barrels marked 30-30 Rem before they were properly marked 30 Rem

Thanks

No doubt the 30-30 to 30 change was transitional. Henwood doesn't give a specific date but implies between 1910-1915. Of course there are always exceptions with these guns, but the majority of the guns marked as mentioned would fall before 1915.