I have a .25 Crown Continuum and have been shooting NSA slugs (26.8, 29, 33.5, 36 and 38). So far everything apart from the 26.8 does very well. The 26.8 flew way off to the side, so I will try some different settings to see if I can make it work better. I shot a possum from 115 yards the other night, with a 29gr slug going at 1000 fps, dropped him right away. The larger slugs doing even better. The heavier slugs I shoot slower, low 900s to high 800s, and they have been fine as well. The 33.5 shoots at around 950 fps, but the 36 and 38 sit in that low 900 to high 800 range. I have shot a few on lower power settings as low as 700ish fps and had good results. I actually accidently shot an FX Hybrid at just over 700fps when I had the transfer port set to low power, and even then it still went through a 19mm bit of plywood at 88 yards, so still carrying plenty of energy. So far the accuracy of all but the 26.8 have been very good and I am keen to try some boat tails. Does anyone have any suggestions on boat tails I can try? My gun is shooting 70-80 FPE on Max.