Stilicho asks... "Anyone own a .357 Sig? Thoughts?"
There is a big difference between 357 sig and 9mm... and don't let anyone tell you otherwise. Even the hot +p loads don't compare to the 357 sig. But... where does the hype stop and the truth begin? A lot of folks claim you get 357 magnum performance out of this round... and that's just not the case.
A 125 grain 357 magnum with a 5 inch barrel is rolling at over 1600 fps. A 125 grain 357 sig is closer to 1450... which is still rolling... but its 150 fps down from the wheel gun. In terms of energy... the magnum is beating the sig by right around 100 foot pounds.
All across the board on all sizes of bullets the magnum is significantly out performing the sig.
But... if you don't have a 5 inch barrel... well then its a different story.
This is what I can tell ya... 357 sig is expensive... there is a ton of blast... and it is not for the recoil sensitive. That said if you don't like it you're a barrel swap away from a .40. So what have you got to lose?
I personally have only shot 357 sig out of large pistols... full sized beefy things. Its fun. its a lot of fun. If I were carrying it for defense... I would have some high end defense rounds on the larger end of the scale. Hornady makes a couple good options... 135 grain critical duty and 147 custom XTP hollow points.
That's a philosophical thing though. I want a heavier slower bullet. I want penetration but I don't want over penetration. I would prefer the bullet to stop inside you... because that would mean you took every ounce of the energy.... and that means you're more likely to be on your ass. And that's what the 357 sig gives you over the 9mm... a chance to carry heavier bullets.
I would stay away from the 115 lasers.... they are liable to cauterize the hole on the way through. No thanks.