After owning several Hm1000x's, I have found that no matter the caliber, I can't get consistent results from week to week shooting. I know that weather can do alot of change in the impact, especially changes in wind. Aside from all of that, I can choose to shoot in calm or no wind and replicate my shooting in those conditions, and still have huge change of impact from day to day. I figured out that all of my RAW barrels shoot way better in dirty. I cleaned after 200 rounds, and accuracy fell off huge. also notice that from 190 down to 150 bar is must. I love these rifles, but for the price you pay, there super fidgety to get dialed in and hold the type of groups i want at 50 and 100.