A solution to gun terror!

[Legion Troll]

All we need to do is wait for the terrorist's guns to jam or blow up!​

To explain further, a .308 has a bullet that (oddly enough) is .308 inches in diameter. The barrel of a .308 has a main ID of .3 inches, with grooves that are .004 inches in depth. So from the outside of one groove to the outside of the groove opposite it, is .308 inches. Now if we get into rates of twist in rifled barrels, you can figure out the spin of the bullet. The weight of the bullet and the twist rate determine much of the accuracy of a given round.

Based on my knowledge of mechanical components, that doesn't sound right, since the bullet wouldn't probably jam.

Based on my knowledge of ballistics, it is correct.

I'm not an expert on firearms by any stretch, but I think that you'd blow up a gun if you fired a bullet that size through it.

You're incorrect.

Sounds kinda iffy to me.

It's not at all iffy. It's a concept that has been used for the better part of 500 years. The lands of the rifling (the raised parts) are smaller in diameter than the bullet itself so as the bullet will actually grip the rifling and thus spin.

I agree with that, but that's not Solitary's claim. He's saying the the OD of the bullet should ideally be exactly the same as the groove diameter. In his .308 example that's .008" larger than the bore diameter. It seems to me (being uneducated in this science) that the material deformed by the lands needs someplace to go. In his example, I'm thinking that the undeformed bullet diameter should be a lot less than .308. I'm thinking around .301 or so. But what do I know? I'm just a licensed professional engineer. *shrug*

It is unwise to guess if you don't know. Are you still contending that the OD of the bullet is the same as the groove diameter?

You arrogantly claimed to have a knowledge of ballistics, yet you clearly don't, because a bullet that size would blow up a gun in your face. Try it and see.

You best measure your groove diameter and your bullet OD, because if they're the same the gun will blow up on you. Guaranteed, Mr. Ballistics expert.