I’ve always had an affinity for the world of the infantry, I worked alongside them a lot as a forward observer and had to train in many of the same proficiencies when down on the line. Be it 11B or 0311, the infantry of the US Army and the USMC are some of the most highly skilled combat forces in the history of warfare. They are men I’ve been proud to serve alongside.
Be it light, airborne, air assault or mech, they find a way to adapt to the situation and overcome it. There is no substitute when the bullets start to fly for a soldier or marine at your side whose sole job is to carry their rifle and put rounds on target.
It is the minimum combat load you want to carry for any engagement. It’s a baseline you never want to mess with. It’s what all those statistics and tests done by R&D are centered on. If you wonder how much ammunition a soldier carries into battle, it is at least 210 rounds, spread across seven 30 round magazines with an alternating mix of ball and tracer rounds if necessary.
In reality, you carry far more depending on the mission at hand. I personally had an additional three magazines on top of the standard seven. It all comes down to how much extra you are willing to carry around when all of that other gear is piled on. Too much more and you are overburdened. Sticking to the standard might leave you wanting in a prolonged engagement. Mission and fitness can go a long way toward making the decision for you.