FWIW, I've found that my SBR Scorpion gets the best groupings using 124gr. ammo. Next is 115, then 147
I finally got my Scorpion to the range. Found that @ 100 yards, 115gr seem to hit point of aim. 124gr are dropping around 4-5", and 147gr dropped below the target all together. I only adjusted windage and didn't both moving it up. I found my groupings with 124gr were good from 25 to 100. Using handloaded Campro 124gr hollowpoints over 4.0gr of Titegroup and 1.08"COL seemed to feed and work great. The brass piles up nicely a foot or two away. Nice light load that feeds well and groups well for me. The factory 115 and 147's I was trying kicked the brass out 10 feet away or so.
Anyone making finer front posts for these? The front post is huge for targets at 100yd.