I have an opportunity to buy some 160 and 165 Vihta Vuori. do you have any experience with it? Please PM. Thanks
Didn't look in the right spot, it's a rifle powder, Finland, circa, 1926. there is a little rifle company there called SAKO and I'm guessing they have used some of it.
Those powders are indeed intended for loading rifle cartridges. They are relatively slow burning, useful for medium-heavy to heavy bullets.
I don't shoot high volume, but when I shoot its almost always Viht powder. I find it to be clean burning and almost always able to get what I want out of a given cartridge. I have used N110, N120, N130, N133, N135, N140, N150, N160, N165, N540, and N560. Luv this stuff.
If I was to 'ballpark' size up my 'opinion' as to the Vihtavuori 300 series general suitability to shotshell reloading (strictly as regards suitability to driving a certain payload weight of lead shot to a certain velocity, and by no means as a measure of powder charge weight data cross-use) it would look like this. This is merely my opinion. YMMV. Again, there is within this absolutely no intent to suggest charge weight similarity, but rather only to suggest the likelihood of accomplishing a similar payload task as I've defined it above. As load data doesn't exist, pressure and velocity absolutely need to be verified via a suitable testing lab. The two labs I'm familiar with are Precision Reloading and Ballistic Research (Tom Armbrust). N310, ~Titewad N320, ~Green Dot N330, ~Unique N340, ~Somewhere between Herco & 572 N350, ~Longshot 3N37, ~Somewhere between Longshot & Blue Dot 3N38, ~Blue Dot
N165 is slower burning and better for heavier bullets, achieving slightly higher velocities, making it great for long-range shooting and big game hunting. N160 is good for large and magnum calibers. The right choice depends on your specific needs and cartridges.