357Sig is a great round. As a matter of fact, I am also surprised it is not more popular.
It has similar ballistics performance to 357Mag, which includes:
a) Very flat trajectory. Excellent long range accuracy and consistency.
b) Excellent stopping power. An ability to penetrate and cause considerable damage
c) Few loading issues. The neck-down design prevents most loading issues.
d) Lower recoil. Recoil that is less than 40SW.
It is similar to a 357Mag, but suitable for a semi-auto with a much higher capacity. This is a superior round to 40SW in all-around performance, and the only reason I didn't buy one is ammo cost. I hope more people adopt it so the prices drop!
It is an excellent round, in fact, the Secret Service has adopted it.
Last edited by feeble; June 6, 2012 at 12:51 AM.