This is all I know about Win. 296. I not only load for muself but several friends, and Win-296 not only get the highest velsity of all the other powders on the market but it gets good accuracy in all of the gun it has been used in. I load .357 mag., .357 max., .44 mag. and .454 and Win
-296 gives me the most velosity and good accuracy in all of the gun I`ve seen it tried in. H-110 is about the same , but I can find Win-2967 cheaper so I use it, and I love it. If H-110 was cheaper I would use it, but no other powder has come close to these 2 powders for high powder hunting loads.