I bought the Rossi .17HMR / 410 combo. What a deal 120.oo bucks. I have that .17 dialed in and man what a shooter. Yeah its single shot..big deal I can shoot, dont need a 2nd! lol. I have 3x9x50 simmons on tapered barrel. At 150 yards you can cover my shots with a 50 cent piece. Barrels swap in 30 seconds. My daughter uses the .410 to bust bunnies. Great gun for the money