Originally Posted by mrmud
So mountainman13 was talking about slow and fast burning powder. Now I'm really confused lol. Never realized there was so much to ammo. So which is better and why? And what is the difference in the action of the bullet with slow vs. fast? Thanks
Don't sweat that too much, he is talking handloading, slower burning powders such as H1000 and RL25 are better suited to overbore cartridges such as the 25-06 and various small caliber magnums. Basically the higher the ratio of case volume to bore the slower burning powder you want as the ideal, while cartridges with a very small amount of case volume to their caliber (such as the 45 ACP) are at their best with faster burning powders like Unique.
Neither is "better" then the other, use the powder with a burn rate best suited to the cartridge you are using. My 6.5x55 likes RL22, my 7mm-08 likes H380, my 308 likes Varget, my 270 WSM and 30-06 both like IMR4350.