Always wanted a 20 ga. 3" mag until I helped a buddy pattern one. Found the same things wrong with it that I found when I first got my Rem 870 3" for use on Canada geese and stuffed it with the most powerful ammo I could get - 3" mag 1 7/8 oz. loads. Tremendous recoil, noisy as hell, but the worst patterns I've ever seen (mine was choked IM). Big gaps in the patterns especially at medium to long ranges and lots of clumping of shot. The long narrow cartridge way overloaded with shot and combined with a powder necessary to get the whole mass moving makes for lousy patterns in either gauge. KBM