So I decided to take the day off. Decided to take out the G17, along with my USP Expert & p30L lem to the range. It was only my 2nd day out with the 17. Man, this thing is a beast!!! On my 1st day out, I was bit disappointed because the groupings were 10 o'clock of the paper. I was using both Remington and Winchester nato 124 gr. to break it in. This time I used my 115 gr. Amer. Eagle....WOW, what a difference! My grouping were much tighter & closer to center. I love it!