Quote:
Originally Posted by G21.45
This is the only part of your post that I disagree with. The rest of your comments are, mostly, spot on! Where, the heck, do you buy ammo? I certainly can't find 50 rounds of 357 SIG for 10 & change anywhere.
(A huge, $9.00 per box if I buy a case!) 
PS: I don't want to get into terminal ballastics, tonight, other than to say that there ain't a 45 acp made that'll penetrate like a 357 SIG. |
G21.45,
I was surprised by this myself, and I admit my research sample was small, or more correctly, singular. Ammoman's current low price on 500 rounds of brass cased .45 ball and .357 SIG ball is $139. In both cases, it's Speer Lawman ammo, he has Wolf .45 for slightly less. I highly suspect that as a general rule, .357 SIG is more expensive and less readily available.
I don't shoot .357 SIG, and I don't consider $139 a case a good price on .45, but that's where I made the comparison. Where are you getting .45 for $90 a case, because I haven't seen that for several years.
Regarding penetration, you are correct, .357 SIG penetrates like no .45 ACP can. However, is this really desireable? In the 1920s, they developed the .38 Super so G Men had a handgun to penetrate auto bodies. It was popular briefly, but mostly went away in the 30s, and only came back in the 80s as a dedicated competition round. So we've had a high speed/high penetration 9mm/.35 auto round before, and it did not achieve large scale popularity. Yes, it has higher penetration than .45 ACP, but this is only a factor if .45 penetration is insufficient. I have never seen any claim that it is.