I am looking at buying an H&R Buffalo Classic in .45-70, they will hold 1.5 moa with factory, so i hear. Also the barrel can be switched out for any other that fits the sb2 reciever, with a litttle smithing of course. Only other one i know of is the Baikal IZH-18mh comes in a few popular calibers. Chiappa makes one called the "overtop folding hunting rifle" largest caliber in that is the 6.5x57. Unless you can get your hands on a Frank Wesson Tip-Up, the next coolest thing in my opinion is a sharps-hepburn clone, I think CS sharps sells 'em, pricey though. Hope that helps, skokie