I owned one of those 7mm Rolling Blocks for a few years starting in 1961. I only shot a few boxes of factory 175 RN in it. It was very accurate, but the trigger pull was quite heavy.

Funny you found it. Nicest 7mm Rolling Block I have ever owned or had in my hands. The market on these used to be hot enough that a gun in this condition would fetch $1000 if the right people were looking, but it has evidently cooled quite a bit. That gun is on its third time around and I've lowered the opening bid $50 each relist. Sigh....