Varget is a great powder & almost boringly very accurate.
But sorry, it's time has come & gone in the 223/5.56.....................it's considerably slower, velocity wise, than is attainable with other powders & is horrible through a powder feed, especially in a relatively small case where variations matter more than in a large case.
Maybe for the competitor who hand weighs or trickles his charges & wants/need the very last drip of accuracy, but for everyday Joe for plinking & general shooting, even in SPR type rifles, there are numerous much better choices today.
MM
