50 Blanks per box
Sort of a 3/4 load by our standards.
Ejection from SMGs with BFA set at .125 goes a bit farther than standard 1/2 loads and SMGs set up to use .136 BFA orifice will eject slightly less than usual.
We have used these well in STEN guns & Mp40s. 9x19 Pps-43s are hit or miss.