Quote:
Originally Posted by 74A95
Wow. You sound clueless.
A 124 grain bullet at 1150 fps from a 9mm Luger produces 364 ft lbs of muzzle energy. A 357 Sig pushing a 125 grain bullet to 1350 fps produces 506 ft lbs of muzzle energy. That's a difference of 142 ft lbs.
Are you trying to say that a 9mm at 40,000 psi produces the same ballistics as a 357 Sig at 40,000? They don't.
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If you look around, some of the 9mm +P+ rounds of that weight are pretty much right there with the 357SIG velocity wise. If you do the math, they are very similar energy wise.
And according to the engineers at Speer, 9mm at 40,000psi, will basically equate to 357 SIG at 40,000psi, given bullets of the same weight. Ill take their word on that over internet conjecture.
357SIG is really nothing more than a 9mm in a different case. Its max pressure is 40,000psi, unless they have found a way to go +P with it, which I havent seen.
9mm +P+, according to Speer anyway, is loaded to 40,000 psi.
These sorts of discussions always seem to end up being arguments about whose round or load has the best paper numbers, and having a few fps makes a major difference (they dont) if you want to win.
The reality is, they are all handgun rounds and not some super duper man stoppers. They all pretty much suck. They also all strive to perform to those FBI standards that everyone seems to use, and they all seem to perform about the same there too.
Whats really important with any of them is, youre as competent as possible in your shooting skills, know your anatomy, and what you really need to be targeting when you shoot, use a reasonable caliber that is easy for you to shoot well with, and you dont stop shooting, until the threat is down and out. That applies to EVERY one of them.
If you think you have a gun that shoots some sort of magic bullet, especially if you paid extra for them, and youre using them to make up for a lack of skill, I would seriously suggest you need to rethink things.
