Having had a couple of original model 71's and a few Barnes 250gr bullets to go with in the past, I can tell you that one CAN make 'em go 2500fps, but with that steel buttplate, you don't really want to do that, nor does one really need to. Doing so sounds sorta like BOOM..... OUCH! BOOM..... CRAP! BOOM.....Chit! Boom... WHY am I DOING this to myself!
Congratulations on a very fine rifle there, for sure.