The Stinger does okay in my CZ BRNO 2-E. I believe it is a 452 also. I've used every target ammo, foreign and domestic, that I could find, plus all the popular U.S. hunting brands including hollow point, etc. My practice was outdoors in calm or light breeze conditions at 50, 75, and 100 yards. To my amazement all testing showed that the Federal Lighting consistently held tighter grouping than anything I put through it. The Stinger seems to throw a wild round occasionally. The heavy target ammo couldn't hold at long range. All the hunting ammo did great. But that cheap Federal plain lead bullet just beat the pants off everything else.