I just told you that I cannot fit 1200 rounds or even 1000 rounds of the IMI 77gr mk262 clone ammo in a .50 cal can while boxed. I just took 1100 rounds of IMI 55gr m193 packed loose with room to spare in the same type can to a class last week.So your main concern is convenient access. Fair enough. But I'll leave you with this. If you could fit more in say one of those 20 round boxes why doesn't the manufacturer simply dump 20 rounds into one of those boxes? Surely that would be less expensive than needing a machine to neatly stack them. A fun test would be to take one of the 20 round boxes and try to dump 20 rounds in it loose and close the box. Will they fit?