GETTING MY FEDERAL 243 AMMO 100 GRAIN TO WORK

Fired flawlessly through my Glock. At 21ft went from ten inch groupings all the way down to 2 in groupings using these things then again to 10 inch groupings after I applied it. Distinct as working day these items is correct with virtually NO recoil. Wouldn't want this within a tactical circumstance but if you'd like to see how exact you actually a