yeah i knew LC was big, didnt know they were the biggest... all the boxes (30+) are all the same, they arent "sealed" per say however... just a flap that goes in...
and it didnt say anything like that, but i did some research that day, and found some things out... its labeled XM855, and says "meets military standards" on the side of the box....
well, after reading, if its designated M, that means it meets mil spec requirements, and that ammo, goes directly to the military.... not to civilians... if it says XM, its DOES NOT meet military standards...
if thats the case, why would they be stupid and put meets military standards on the side of the box, when XM clearly means its not up to spec? thats false advertisement...
yes i do know about burn rates, but thats pretty much where it ends for me... i dont know about different powders, ect... why would someone want to use slower burning powder, and increase the weight? wouldnt slower burning powder also leave more residue behind vs faster burning powder?
Slower burn rate doesn't necessarily mean slower bullet flight.
Just means a different burn characteristic and different pressure spike.
Depending on the cartridge, sometimes a slower powder will yield better accuracy in a given load.
It could be that the military found that the powder in that XM855 was more resilient to ambient temperatures.
Lots of reasons that it may be used.
One good thing for reloaders is that a safe powder charge that fills the case (or almost fills) makes it impossible to double charge.
Pistol powders are among the fastest powders and they often leave plenty of room to make a mistake and double charge.
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