We don't gather any particular info and we do not give any of the data to third-party products and services. 22LR, not to the 69A’s .22 S, L, & LR. I suppose that this meant that the chambering and rifling were being designed for most accuracy utilizing the .22 LR https://highimpactrounds.com/product/winchester-super-x-16-ga-2-75-in-6-1-oz-1165-fps-game-load-25-rd-box/