This is a valid point, but I suspect (though I do not have the data to hand) that each rifleman was expending more than 100 rounds of ammunition.
For the sake of argument and illustration purposes that means:
- 10x 10 round magazines = 100 rounds
- 7x 15 round magazines = 105 rounds
- 5x 20 round magazines = 100 rounds
- 4x 30 round magazines = 120 rounds
- 1x 100 round belt = 100 rounds
From my own anecdotal experience from a recent pistol requalification (joys of living on the 38th parallel) you can burn through 60 rounds fairly quickly - even having to reload every ten rounds.
This is TRUE.
It IS possible to rapid fire your way through 60 rounds fairly quickly - even when having to reload every 10 rounds - particularly when the magazines are sitting there on the table in front of you, ready and waiting to be used up.
However, lets look at this from a position of logistics and equipment carrying capacity for your "average infantry grunt" who gets trigger happy.
Let's be excessively generous and assume that the ammo that everyone is firing is snub pistol ammo (30g for 6 shots = 5g per round).
If 10,000 rounds are fired (by all parties to the firefight) ... that's 50kg of ammo expended.
If 10,000 rounds are fired (by all parties to the firefight) ... that's 1667 magazines of ammo expended.
That's a LOT of "logistical tail" for that particular firefight.
Increase it up to 100,000 shots fired and you're looking at 500kg of ammo and 16,667 magazines of ammo expended.
For people who like to refer to
"real world data" for things like this:
The current rifleman’s loadout in the US military is seven 30-round magazines for the M4 Carbine. So, you’re looking at 210 rounds of 5.56×45 ammo.
So, basically ... ~200 shots carried per infantryman (or 200 shots MINIMUM).
How many shots does a Laser Pistol/Carbine/Rifle power pack provide? (CT Striker 3, p31)
- TL=9/8/9 = 50 (Pistol), 50 (Carbine), 100 (Rifle)
- TL=13/13/13/ = 200 (Pistol, Carbine and Rifle)
So "ammo anxiety" could potentially be a Thing™ for the early laser weapons (TL=8-9), relegating them to "specialist" roles that prize marksmanship over "spray and pray" fire suppression. By the time you get to TL=13 (the x-ray laser weapons!
), battery technology has advanced enough that "ammo anxiety" is significantly avoided, especially for mechanized infantry with access to vehicles capable of "repowering" the battery packs used by the lasers. No need for "ammo dumps" and the logistical tail of manufacturing and safe storage required for precision machined expendable rounds ... all you need is electrical power and you can top up your laser battery and keep shooting.
You don't need to transport "ammo" for distribution, you need to transport "fuel" for power plants (which at these tech levels will almost always be fusion).