In the same auction I bought the .375 NE Rimless in I also bought another Ruger No.1 in 6.5x53R. Done by Marquart Precision it has a 27" barrel but has a nice taper so it isn't really muzzle heavy. Again, I wouldn't have chambered it in such an obsolete round but somebody did! After making cases from .303 British I started loading for it. I discovered that the case capacity for the 6.5x53R and the 6.5 Creedmoor were identical. I poured in ball powder but didn't stop where the bullet would be seated so I guess I need to do it again. I was getting over 2500fps using Reloader 15 and IMR 4451. It seemed to be a fairly mild load so I may go back and see what I can do to top 2600fps. Funny how everyone is going ape over the 6.5 Creedmoor and the cartridge I have which started about 1895 gives virtually the same performance. I guess the writers have to do something to sell some new guns.