Whewwww, damn Tex, that rifle looks awful light, with a skinny butt too, don't know what twist it has, but 700 grains outta that one would be brutal with full bore black powder loads.
I asked him what it weighs, we'll see what he says. For me it would be a hunter, not so much for long strings on the line. There are some 500-540gr flat points out there in the .510 to .512 range, and that's what I'd probably use.
I wouldn't shoot that rifle on gunbroker for money. Just sayin'.
aside from recoil, I wouldn't shoot any original roller without an expert checking it. And I ain't no expert on them
