I mounted up a new anti canting device, bubble level, on my VXIII, and zeroed in at 300yrds this weekend. The results were better than expected! Before shooting at my 5" steel swinger, I wanted to see on paper where I was hitting, and fired off 3 shots to check zero, appon checkeing my group I was very happy to see a nice triangle measuring 1.700" I told my shooting buddy it was his turn, and his group was 3.5" opening it up to 5". I usually group .5"-.6" at 100yrds, but my groups always opened up to something larger than 1/2 moa as I backed up, this was my first 300yrd 1/2 moa group. We preceded to pepper my swinger the rest of the time, not missing it once. I found myself readjusting my bipod swivel after each shot, something I didn't realize was getting off so far before the ACD was installed. Working on getting access to a bit more yardage, as 300 is the back end of this range. Next time out I'm gonna shoot a real group of 5-10rds