Thread: Do powders change over time.

Different batches of the same powder can perform differently. If your old load was near max then best to back off a grain or two and work up load again to be safe. Powder manufacturers and plants seem to change hands quite a bit so depending how “ old” your old powder was it might be quite different with stuff being made & sold today. W760 and H414 both now marketed by Hodgdon were originally different powders, now a days same powder just different packaging. Be careful