I'm new to AR's, having just purchased an Armalite M15A4C carbine.

I plan on buying a case or two of Prvi Partizan 55gr, but I'm a reloader at heart and plan on loading my own on my Dillon 550B.

My question is about suitable powders for AR15 application.

My primary bullet weight will probably be 55gr.

I have a large amount of IMR 4895 and Varget, some H322, and H335 that fit in the suitable for 223 burn range.

I'd like to use the IMR4895, at least till I use up the 16lbs+. It seems to burn a lot cleaner than either H322 or H335, and about the same as Varget. Is powder residue a major reason for selection for AR use?

Thanks in advance.

Mark