I have a 20 ga. slug barrel and love it. I started with the Winchester partition at 1900 fps and the groups were terrible. I moved down to the Win platinum tip at 1700 and my groups are now about 1.5 - 2 inches at 100 yrds.The 1900 fps were somewhat harsh on the shoulder much like a 12 ga., but the 1700 are much easier to shoot. I have no experience with it on game, but hopefully next week in the opening day, it will prove to be a reliable choice for deer.
Shawn