VV-N 340 & .45 Colt 225 Gr TC-HB

chriske · October 13, 2009, 08:35 AM

Hi,

Does anyone have any experience with VihtaVuori N-340 powder ?

I'm trying to develop .45 Colt loads with 225 Gr plated hollow-based bullets for my 4-5/8" Ruger Blackhawk, say around 900 fps'ish.

The closest I can find on VihtaVuori's own site are loads for :
200 Gr LSWC : 10.9 Gr to 11.6 Gr; , for 1100 tot 1200 fps
230 Gr FMJ : 9.7 Gr tot 10.4 Gr for 990 to 1100 fps

The bulletmaker's site (H&N sport) only lists loads with N-320 powder, which is quite a bit faster, more like W-231, namely 6.0 Gr tot 7.5 Gr, but assures me those bullets can be loaded up to and beyond 1000 fps, depending on gun & barrel length.

Any ideas ?

October 13, 2009, 08:35 AM	#1
chriske Senior Member Join Date: November 10, 2008 Location: Belgium Posts: 176	VV-N 340 & .45 Colt 225 Gr TC-HB Hi, Does anyone have any experience with VihtaVuori N-340 powder ? I'm trying to develop .45 Colt loads with 225 Gr plated hollow-based bullets for my 4-5/8" Ruger Blackhawk, say around 900 fps'ish. The closest I can find on VihtaVuori's own site are loads for : 200 Gr LSWC : 10.9 Gr to 11.6 Gr; , for 1100 tot 1200 fps 230 Gr FMJ : 9.7 Gr tot 10.4 Gr for 990 to 1100 fps The bulletmaker's site (H&N sport) only lists loads with N-320 powder, which is quite a bit faster, more like W-231, namely 6.0 Gr tot 7.5 Gr, but assures me those bullets can be loaded up to and beyond 1000 fps, depending on gun & barrel length. Any ideas ?