Originally Posted by robocop10mm
In my experience the effectiveness of the .357 Magnum is partially a result of bullet shape and construction. The revolver ammo tends to have a more blunt profile with a voluminous hollow point. The .357 Sig is a supercharged 9mm with a rounder nose and smaller hollow point. While on paper they look very similar, in actuality the Magnum has the upper hand.
All the 357sig FMJ I've seen has been flat nosed, and I've shot quite a bit of it. Do you mean it's narrower than 9mm near in the upper half of the bullet?
357sig is fun. I just don't think it offers much to justify the expensive appetite. If someone knows of a good source for affordable 357sig FMJs, I'd love to hear it...I pay $20/box, delivered.
But here's the 9mm/40sw options I was mentioning, that'll replicate the 357:
CorBon 40sw: 135gr, 1325fps
Win Ranger 9mm +P+: 127gr, 1250fps
"Typical" 357sig JHP: 125gr, 1350fps