Ackley wrote:the only reason you dont see Vit powders being used on the American forums like 6mm BR is they dont need to import it (and if they dint it very expensive) and they have all the american powder makers over threre,so they use what they have on the shelf of there gun shops
In this particular instance though, they do mention N540, just not N140 - plus, N133 is very much the 6PPC powder of choice over there too. My own experience is N140 is brilliant for light to medium weight-for-calibre bullets in a .308 sized case, but it's less good as you get heavier. In my .243 for example, it's fantastic with Gentner 66gr bullets, but is bettered by 2208 (Varget) and 2209 (H4350) for 75gr and above, especially in an AI case where I hit pressure signs with it before getting decent velocity.