craigcpa said:
Flat, flat trajectory that *ANSWERED ALL THE QUESTIONS I DIDN"T ASK! :lol:
WAYNO said:
Looking at the ballistics, alone, I question why the cartridge is not more popular.
How FLAT does the trajectory need to be in an automatic pistol round ? I'd venture to say that ALL pistol rounds have a flat trajectory within the distances that an automatic pistol is used.
The 357 SIG is pretty much a one bullet caliber, and that's a 125-grain bullet at about 1350 fps. That falls anywhere from a 100 to 250 fps slower than comparable bullet weight in the .357 Magnum. The 125-grain bullet is about the lightest bullet for the .357 Magnum. The 357 Mag easily handles 145, 158, 165 and 180 grain bullets. In fact, you purchase factory 158-grain .357 Magnum ammo hotter (more MV/ME) than the 125-grain loads for the 357 SIG. Comparing the 357 SIG to .357 Magnum is just creative marketing.
Also, considering .357 Sig as a carry gun, how does it compare to a 9 mm, 40, or .45? The 357 SIG delivers 9x19 performance/effectiveness--nothing more, nothing less. In fact, in some loadings the 9x19 outperforms the 357 SIG in penetration and expansion--what REALLY counts.
357Sig doesn't do much that a 9mm or .40 won't. It's a bit faster than 9mm and .40. It penetrates hard targets a bit better and has (a little) more energy. 10mm does all of this and does it better. 10mm is balistically better than .357 Magnum as well, and there are no bottle-neck reloading issues to contend with.
Testing conducted by the FBI (Buford Boone) and that done by Dr. Gary Roberts clearly show no meaningful differences between the 9x19 and 357 SIG. The 147-grain Ranger T (RA9T) penetrates 14.5" and expands to 0.66" inches while the 125-grain Ranger T (RA357SIGT) does 12.1" and 0.66"--in other words, the 9x19 gives 2.5" more penetration and the same expansion. The figures stay close pretty much across the battery of tests (including auto glass) with the 9x19 having a slightly better figures across the board.
It does not matter if you use a 9mm in 115gr 124,125, 127,147 9mm or the ever touted "more powerful" 155, 165, 180 .40 S&W jhp as long as the bullet is working properly they are going to be within a few millimeters of each other in wound channel diameter and +or - and inch or two in depth.
9mm +p 125, .357 Sig 125, .357 Magnum 125, 9x23mm 125 are basically all the same there is no significant difference between them.
If you stick to 124/125/127-grain bullets from the major manufacturers, the 357 SIG falls right in the middle--it has about 100 fps on the 9x19, and it falls about 100 fps short when it comes to .357 Magnum. In terms of actual bullet performance/effectiveness, there's not enough difference to make a difference. If you like heavier bullets it's no contest--the .357 Magnum can push a 158/-grain JHP faster than the 357 SIG can push a 125-grain JHP.
The 357 SIG is a good round, but that's it--nothing more and nothing less. If you like it, fine, but it's no magic bullet. It offers the same level of performance and effectiveness as any of the current generation service calibers. It's just another choice.
Try to find 357 Sig ammo at your local Walmart or even your local sporting goods store, not saying you can't, but you won't like the price or the selection.
If you want a HOT, ballistically superior auto round ... look at 10MM ... a FAR more mainstream caliber .... and even 10MM is tough to find.
REV