I like 748 in the 223. I'm leery of BL(C)2 in that caliber, however. I think that the latter works in a narrower pressure range and things can get dicey fast if you're not exceptionally careful. Just my .02.
PS: Hope you have a good supply of small rifle primers. Ball powders usually call for magnum primers, but I've had equally good results with the regular ones in the 223.
PS: Hope you have a good supply of small rifle primers. Ball powders usually call for magnum primers, but I've had equally good results with the regular ones in the 223.