I bought a fully rifle barrel w/ cantilever mount for my Browning BPS back in 1998 from Hastings. I forget the price, but the barrel is fairly accurate. Getting 1.5" groups at 50 yards from bench. Standing shooting freehand, my groups open to 4-5" at 50 yards.
Nice thing about the cantelever mount is that scope seems to hold it's zero fairly well even after barrel being removed and put back. Only needed minor adjustments.
Leo