Ok, this is a pretty complex question and I am not sure how to properly ask it.
I am running a campaign in a role-playing game in which there are no Dice. Some dopers out there might know what it might be, but really the game is irrelevant. In this game there is an Attribute named Strength. Which in game terms is pretty simplistic. In the game it covers physical strength and resiliance. After so many points of strength are reached, the person becomes ultimately bulletproof. (depends on the type of gun really)
I like to make my games pretty realistic in terms of this attribute and the others (psyche, strength, endurance and warfare), but run into some problems when their strength comes up against high caliper rifles. There strength protects them against the bullet punching through them, but in many places force still gets carried through. (i.e some universes the rules of the universe may not be the same as here)
My question is how much force does differing caliper guns and rifles produce and how much strength/mass would it take to not get thrown on your ass from the concussion. Obviously if your muscle acts as armor a .45 magnum might not penetrate your skin, but are you strong enough and have the leverage necessary to not get thrown on your ass from the force that still gets transfered to your body? Is there a possible formula for figuring this out?
For example, my formula for strength and armor capabilities are as follows. Strength- Every point above Amber basic (name of the game), is about 100 lbs of mass you can lift at earth level gravity. Amber basic is the equivlant of the world’s strongest powerlifter in terms of absolute strength. Lifting about 1/2 ton from a deadlift position. Every 10 points is another 1000 lbs. At 10 points of strength above amber basic you can basically lift a short ton. Pressing it over your head is a different matter entirely.
Ok, resistance to damge. The book has values for armor qualities already established. They have I believe, 1 pt armor is resistance vs conventional weapons, (swords, knifes, etc), 2 pts is resistance to firearms, and 4 pts is Impervious to all conventional weapons including firearms. I don’t like to use these because not all firearms are created equal. Is a high powered plasma gun a firearm? How about a sidewinder missle?
My thing I generally do to make it simple is every 15 pts of strength gets you the next armor quality. 15 pts you get the 1pt armor, 30pts you get the 2pt armor, 45pts you get the 3 pt version (which there isn’t one of, but is better than the 2 pt and less than the 4pt) and finally at 60pts of strength you are Immune to most firearms. (within GM’s discresion of course, thats me) Possibly upper limit resistance will be the 50 caliper rifles and such.
Now, saying that the muscle tension awards such immunity (and even organs and bones somehow magically get this bonus), Would a guy with 60 points of strength *Raw physical power of lifting 7000lbs off the ground, be able to get hit with a high power rifle and remain standing. Say it caught him off guard and he couldn’t brace himself in time. Does such a high power rifle exceede 7000lbs of mass/velocity? (not that he could just shrug off what he can maximally lift mind you)
What are some of the high velocity/mass/acceleration of such high moving objects?
Also, how much pressure per square inch can some of the hardest and/or most resiliant materials take?