cz 452 .22lr,win subs,sak mod or similar,silent deadly,and as acurate as any gun on the market,if you do your bit,and you dont need any varmint barreled one,s neither, the are just extra weight,so get the 22 first,and learn to shoot,especially if your going to be useing the lamp,as a 150 yd rabbit in the dark is a long way,especially if your head shooting them,which every one on the forum,s seem to do, and be sure of your back stop at all times,ok,
17 hmr a lot more noise,and a dam site more to run,bullet price wise,oh and you want sub sonic rounds for the .22,as high velocity dont work as