I took out my 410 Shockwave to sight in the Truglo red/green multi reticle red dot. I also decided to test different self defense ammo while I was there. I sighted the red dot in a 7-8 yards. The SD ammo I shot today: Winchester 3" PDX1, My reloaded 3" 00 buckshot, Hornady 2 1/2" Triple Defense, and Sellier & Bellot 2 1/2" 000 buckshot. I also shot some 3" #4 birdshot just for giggles. This is the order in which each shot/patterned the best: Winchester 3" PDX1 Sellier & Bellot 2 1/2" 000 buckshot Hornady 2 1/2" Triple Defense Reloaded 3" 00 buckshot. My 00 buckshot loads do exceptionally well in my Mossberg 500 full choke barrel but not so good in the cylinder bore barrel of the Shockwave. All 5 pellets still stayed in an 8" circle at 10 yards - I'll keep them for use in the full choke barrel 1 shot PDX1 at 7 yards 1 shot PDX1 at 10 yards 1 shot PDX1 at 15 yards 6 shots of 000 buckshot as fast as I could rack the gun and get the red dot back on target at 7 yards. Needless to say it would have been a bad day for an intruder within 15 yards with the 410 Shockwave. The recoil is next to nothing so that someone with disabilities could use it.