Originally Posted by mbliss57

My 2 cents.. I am still trying to figure out which is the best load to carry also. One thing I disagree with is the statement that size/weight of the bullet is king. A simple law of physics from high school says that Force F = M (mass) x V2 (velocity squared) Since velocity is squared the faster the projectile can travel the force goes up much faster than using a larger bullet.
I will explain the math using no units.
Force =a mass of 10 and a velocity off 10 = 10x(10x10) = 1000 units
If you double the mass to 20; Force = 20 x(10x10) = 2000 units
But if you double the velocity; Force = 10X (20x20)= 4000 units
So velocity is really king. I am not a ballistics expert or even a good journeyman. I am just looking at the math. SO I don't understand why a lighter bullet (say 115gr) going significantly faster than a subsonic 147gr bullet has less penetration. It should have more. Please help me with this. I must be missing something. Unless when we mean penetration we really mean the damage done by a larger object when it enters a cavity. That is a different science altogether. Somewhere in the past couple of month I read a really interesting paper on stopping power, hydro shock and penetration. I wish I could find it. Anyway.. I remain a learner on this subject and I just carry good factory fresh ammo that is recommended to do the job of ever needed.