If you throat it long enough, you will easily get 2800 fps with h1000 unless you have a very slow barrel. There are other powders that will give even better velocity, but h1000 is very low pressure with a full case, so no drama, good speeds, and long barrel life. Accuracy tends to be good with either a CCI 250 or sometimes it needs a 200. The 250 have typically shot better for me though, especially in colder temps.