H322 has usually been considered a little fast for heavier (> 62 grain) bullets in .223. For a long time, it has been a standout powder with 50-55 gn. bullets in 100 to 200 yd. matches.
Get some and try it in your rifle with the heavier bullets. It may work well with your barrel and twist rate. If not, then it is usually very good with 55 grain plinking loads in just about any rifle I have tried them in.
Posts: 1240 | Location: Moved to N.W. MT. | Registered: April 26, 2009
If it was a good deal, I'd snag any powder that could be made to work with the calibers I load. The stuff is too dang expensive anyway.
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-- Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past me I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain. --
Posts: 17746 | Location: New Mexico | Registered: October 14, 2005
Do not waste your time on H322. There is none out there. It comes from ADI in Australia. H322 with medium wt. bullets is great. H322 was the darling of the BR crowd way back when the 222 Rem. held court. Now, the 6PPC seems to hold court. Shooting VV N135.
Last time I bought powder it was half that. Good thing I stocked up.