Originally Posted By: fuhrmann

VV powder means Vihtavuori?
I have never seen any data published for VV powders as BP substitute.

Yes, Vihta Vuori. No, possibly not a true substitute for BP but they too have been in operation for quite some time and some of their old powders replicate(closely or loosely???) those powders used in the period when loads were converted from BP to semi-smokeless. Ford put me on a trail of VV N140 where Axel E had noted that VV N140 had a similar burn rate to R5(Rottweil) and the results were stellar.


So I think I would migrate from BP to 4198, whatever, & then over to VV. Seems one has to match the powder to the chamber?