AA-7 vs HS7

Trapp · August 3, 2007, 06:17 PM

Are they the same thing? I just picked up a pound of HS-7 (even though it has been discontinued for a few years now) and started looking for loads for it. The data is nearly identical to AA#7 (maybe .1 gr difference).

Scorch · August 3, 2007, 08:10 PM

They are not the same powder. They may be similar and have similar pressure curves, but they are not the same.

August 3, 2007, 06:17 PM	#1
Trapp Senior Member Join Date: December 5, 2004 Location: KTN Posts: 1,221	AA-7 vs HS7 Are they the same thing? I just picked up a pound of HS-7 (even though it has been discontinued for a few years now) and started looking for loads for it. The data is nearly identical to AA#7 (maybe .1 gr difference). __________________ HDR Ban!? It's a shame all of my guns sank with my boat last week... Time to catch up.....like mayonnaise

August 3, 2007, 08:10 PM	#2
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	They are not the same powder. They may be similar and have similar pressure curves, but they are not the same. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services