My ammo order came in on Tuesday and among it were 1,500 rounds of standard velocity Aguila .22 l.r. I had to try the ammo for function and accuracy before putting an order in for a larger quantity. The ammo definitely needs a good firing pin strike and did not work 100% in the tight Hämmerli 208 chamber. Reliability was 100% in the old Colt 1911 conversion with the floating chamber but clean up was no fun! Impact in the Korth was about 1 1/2 inches lower than Geco Pistol at 23 yards.