or any understanding of ratios. There is something called the 'Law of Diminishing Returns" that says you get less and less for each additional unit of resources committed, as you get closer and closer to what is possible".
A rd of ammo that is rated as a 90% likely manstopper (with a regular chest hit, now, not lucky FLUKES to spine, or hip-pelvis socket, nor brain) and not a hit to the guts, which has no ability or reason to have any sort of effect, for MANY seconds, at the very least) is 3X as good a choice as a 70% load. A 90% manstopper leaves 10 men out of 100 attackers still able/willing to fight. A 70% load leaves 30 such men out of 100 attackers. 3x as good odds of success.
A rd of ammo that is rated as a 90% likely manstopper (with a regular chest hit, now, not lucky FLUKES to spine, or hip-pelvis socket, nor brain) and not a hit to the guts, which has no ability or reason to have any sort of effect, for MANY seconds, at the very least) is 3X as good a choice as a 70% load. A 90% manstopper leaves 10 men out of 100 attackers still able/willing to fight. A 70% load leaves 30 such men out of 100 attackers. 3x as good odds of success.