[quote=@Wombatallion]
A way to tackle the problem of everyone having advanced weapons is having the setting somewhere guns are illegal or uncommon which would sort out the problem fairly easily.
[/quote]

Boring. Everyone needs their steel fix.

Ammo should be the rarity. Like rolled randomly. Rare calibers should actually have a bonus rather than a minus because they wont be immediatly consumed the way that the others will.