Columbus Archer
Member
- Joined
- Mar 8, 2006
- Messages
- 10
Just curious as to what the difference is between the 357 mag and sig? Is the sig closer to a 38 special strength wise?
For all practical purposes, there's not enough difference between the 9x19 and 357 SIG to make of difference.
On the other hand, the 10mm is the autoloader equivalent of the .357 Magnum. For all practical purposes, the .357 Magnum and 10mm are ballistic twins.
A Federal Premium .357SIG round produces 506 ft-lbs whereas an Federal Premium 9mm produces 353 ft-lbs. That’s over 43% more energy. That’s a big difference.jc2 said:For all practical purposes, there's not enough difference between the 9x19 and 357 SIG to make of difference.
The 357 SIG exist for a single purpose--to sell handguns, period. It was part of an effort by SIG to reclaim the momentun they lost in the LE market-place (largely to Glock) because they were so slow in delivering a .40 S&W weapon.The .357SIG exist for a single purpose...
Then it failed miserably--it falls well short of the .357 Magnum. They 357 SIG was hyped by SIG in as such but falls well short of that mark in actual practice. Basically, it is 9x19 in a short, fat case.to provide the same high-powered round that is found in the typical .357 Mag police service revolver in a semi-auto package.
Not really. It's one of those numbers that looks big, but what is actually measured is rather small. Frankly, a 153 fpe is not enough difference to make a diiference--in actual enery, it is a very small amountA Federal Premium .357SIG round produces 506 ft-lbs whereas an Federal Premium 9mm produces 353 ft-lbs. That’s over 43% more energy. That’s a big difference.
Alright then...forget Federal and lets move to CORBON. 575 ft lbs for their .357SIG. Bottom line is that the power rating for 357SIG is well above 9mm.MCgunner said:Well, I carry +P 9mm stuff that puts out 400 ft lbs, so it's down 100 ft lbs to the Sig load, but that's in a very compact pistol. In a full size gun, it makes 440 ft lbs
It is my understanding that there are at least two significant reasons for using 357SIG over .40. The first is that the round appears to be a bit more accurate than the .40, which is not important for self-defense but important for policemen trying to take down a BG at a distance.MCgunner said:Now, consider that the parent .40 S&W case makes well over 500 ft lbs in it's lighter bullet loadings of 135 to 155 grains. Why the .357 sig when you have equal exterior ballistics with a bigger, heavier bullet in the .40?????
What...you're saying that the 357SIG doesn't have a higher power rating??? I think you're the one that's wrong.Wrong again graystar.
Police Firearms Instructor.
Urban Rifle Instructor.
Colt M16/AR15 Armorer.
Glock Armorer.
I would tend to agree. But the .357SIG can do things that the 9mm can’t. Otherwise law enforcement across the country wouldn’t be moving away from 9mm to .40/357SIG. And that’s the thing to remember. This round wasn’t meant to compete in the personal self-defense arena. It was meant to do what a 357 Mag does in the hands of a policeman. Police don’t carry hollowpoints and, like I said, they have a need to do things like shoot a BG through a car door. 357SIG is simply a specialized round with a specific purpose and it must be reviewed with that in mind.A 12 inch hole that is .75 caliber from a 9mm is the same as a 12 inch hole from a .75 caliber 357 sig.