I have a .17 AH on a Contender frame and love it. It`s been my main carry gun in the summer for acouple of years now. Mine love the Calhoon 19 grn. bullets. I push them at 3,600 fps. and the gun shoots flat to about 290 yrds. Not bad for only 10.4 gns. of H-4227. Be real carefull working up a load for it though, persure jumps reall fast and you need to work up 1/10 of a grain at a time with it, and then on the hottest day of the summer. Great round.