Quote from: Sacrosanct;584098I think I have what you're going at.  The only problem I can think of is when you run into a .22 LR bullet at 40 grains, and a .223 (5.56) at 55 grains.  We all know that a .223 will do exponentially more damage than a .22 LR.  When you start getting into different materials in bullet composition (lead is heavier than copper for instance), and velocity behind the bullet (a 100 grain bullet being fired from a rifle compared to a 100 grain bullet being fired from a pistol) it gets even more wonky.

Oh, yeah, definitely.  One thing I had considered is for bullets less than 100gr would step down the damage die, so 75gr would be a d8, 50gr would be a d6, and 25gr would be a d4.  Like they guy said, you could be getting repeatedly shot by a .22 right now and just haven't noticed.  

For the real bullets, though, I was considering some knock-on effects to simulate the other factors.  the .223 in question is something like 50gr or a bit more?  So the FMJ might give it a bonus to armour penetration or critical hits.  Plus, even at a d4 for damage, burst attacks should be able to put three or four rounds on a target.  Larger rounds, say a 350gr hollow point, might get a better chance for trauma effects like stun or getting knocked prone for a turn or two.  And then some trade-off effects for something like Mag-na-Porting a gun.  Reduces recoil penalties, but also decreases whatever velocity bonuses may have been present. (I know, they aren't supposed to affect that and stuff).

QuoteI'm not saying my way is perfect by any means.  I think it just comes down to, "What do we want to happen in the game, and let's build our model to achieve that."

Nah, I think you have a really good handle on what you are working on.  And I absolutely agree that modelling the rules to fit the desired outcome is a good idea.  I was looking for a more general set to work with; I had a similar idea with melee weapons, where each foot of length for a blade was worth a d6 in damage.  I haven't puzzled out the specifics yet.