not sure on which model but personally i would go with the .22-250. u cant beat it. its fast and has a good bit of knockdown power. As for the .17 its really good but sometimes it travels so fast it disentigrates upon impact hardly doing any damage. .204 is good but i dont think it beats the 22-250 or 223. if you can find it the 220 swift is pretty much the fastest gun on the market besides the 17 fireball, which is a 17 bullet into a 223 casing. But overall i would go with the 22-250 or if you can the 220 swift.

Good luck
Colten