Thread: 308 rebarrel- 260ai?

To answer toby if two projectiles of the same weight are going the same speed they have exactly the same energy, regardless of surface area. The smaller diameter pill will have a higher sectional density therefore should penatrate further.

Originally Posted by Cartman

To answer toby if two projectiles of the same weight are going the same speed they have exactly the same energy, regardless of surface area. The smaller diameter pill will have a higher sectional density therefore should penatrate further.

Energy is the same, but the practical question is how do they transfer that energy to an animal, and how does that translate to killing effect?

I suspect bullet construction would be a bigger factor than 0.5mm difference in diameter, but thats just speculation rather than experience.