Dinny is right. There is really no reason not to ream it out to a max. The price is right for reamer rental, it's a super easy job to do, and it really opens up your options for shooting and hunting. Just think of it as a baby .45-70.
Hmmm...now I'm dreamin' of a "Mini BC"...a 28" .357 max twin to the regular BC. Anyone at the factory watching these threads??