only 50cal so far. Thor wanted to make a 45cal bullet but after seeing the huge differences in bore sizes when it comes to the 45, i think they pretty much scratched it off the list.
Try knurling some .45 caliber Scorpion PT Gold (240g, 260g, & 300g) from Harvester. I knurled some of the 260g that I ordered from Carlos at Ed's gun shop but haven't shot them yet.