old ammo vs new ammo
A friend and I have talked about this. What could cause a difference in accuracy/velocity with ammo loaded several years ago and that loaded today? Same 8 pound can of powder and other components,also same. He thinks it's the powder deteriorating in the case. I think it's the stick powder breaking up from rough handling. Like bouncing around on the floor of the truck while hunting.Todays powders are built to last and do. I noticed that when I used 4831 in my 6mm and hunted groundhog's every weekend, I would get some pressure signs and misses in Sept/Oct. I'd load all my ammo by the first of May.Some ammo would be left over naturally. Groups with it did NOT always go into the 1" or less I expected.
A friend and I have talked about this. What could cause a difference in accuracy/velocity with ammo loaded several years ago and that loaded today? Same 8 pound can of powder and other components,also same. He thinks it's the powder deteriorating in the case. I think it's the stick powder breaking up from rough handling. Like bouncing around on the floor of the truck while hunting.Todays powders are built to last and do. I noticed that when I used 4831 in my 6mm and hunted groundhog's every weekend, I would get some pressure signs and misses in Sept/Oct. I'd load all my ammo by the first of May.Some ammo would be left over naturally. Groups with it did NOT always go into the 1" or less I expected.