I tried a 45-70 casing, it was too large in diameter, and seemed a bit long as well. ( it would have to be tipped in not slid stright in. Due to hitting the block)
Thank you, ill take a peek and see if that'll help.
I suppose this is a good place to check, I was recently given a Remington rolling block and a very limited history behind it. Apparently my grandfather purchased it around 1963 in Laredo Texas while he was serving or just after, in the Airforce. Its been sitting in a corner in my...