Quick update. Last weekend was ML opener in GA. We have a 100y and 200y rifle range on my hunting lease. Between hunts I tried some 250g TC Shockwaves and Blackhorn 209. I have never shot the Shockwaves in this gun but they did much much better with Blackhorn 209 than the Barnes bullets.
I was able to get them into about 2" at 100y. I know that many of you are getting some amazing accuracy out of yours but 2" from what I've experienced in the past is much improved! No squib loads or other odd behavior. I'll use it with blackhorn 209 for the rest of ML days then I will focus on the MMP Sabot, 4759, and the 250g XTP. That stuff may all be here in time for me to try it next weekend.
