Hey guys am I doing my math wrong? I came up with 583 charges at 12 grain each from a pound of powder,is that right or am I missing something here? I checked the 410 powder and it says 12 grain charge in a 2 1/2 inch 410 shotshell. I was wondering how much supplies I'd need to start reloading and was thinking about starting with 8# but if my math is right I won't need 8# to start off.