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Old October 10, 2010, 01:00 PM   #1
Tuna2o3
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357 SIG or 45 ACP for CCW?

After much thought I've decided to get a new sidearm for my daily carry, my 1911 just got to heavy, and I felt like i had a significant list to starboard after a few hours of walking around with it on my hip. So i decided that i wanted a smaller lighter pistol. (read polymer, fist one BTW) After much debate I'm down to four pistol choices and two calibers.

Glock 30 SF 45 ACP
Glock 33 357 SIG
S&W M&P compact 357 SIG
S&W M&P compact 45ACP

All the pistols feel good in the hand which surprised me because I have never held a Glock that felt comfortable in my hand before. So my question is what are the advantages/disadvantages of each caliber/pistol in terms of a defensive/CCW standpoint? I'm not worried about he price since they are relatively close here. Really at a loss at to which way to go with this one.

thanks
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Old October 10, 2010, 01:32 PM   #2
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i would definitely go with the Glock 33
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Old October 10, 2010, 01:43 PM   #3
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If youre going to go with the 357SIG, I'd look at the 31 over the 33. The 357SIG does better in the longer barrels. If you go shorter, youre probably better off with 9mm.

I was a die hard .45 fan most of my life until I got my first 357SIG. Lately, I've gone back to 9mm, simply because I get a couple more rounds in the mag, and its cheaper to practice with. +P+ 9mm and 357SIG, running at the same pressures, will give pretty much the same performance with bullets of the same weight, so why not.

Still nothing wrong with .45, but since they all pretty much perform the same these days, with proper ammo choice, I'd rather have a similar or smaller sized gun that has a higher capacity, and shoots cheaper ammo. Of all of them, .45 is still the most expensive in that respect.
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Old October 10, 2010, 01:58 PM   #4
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They both have distinct advantages and disadvantages, which one is best depends on what you want the gun to do.

The .357 Sig is usually available in a smaller and lighter gun, but the .45 will typically have a bit less recoil due to the larger and heavier guns it comes in.

The .357 Sig will offer slightly better penetration of intermediate barriers such as car doors while the .45 will offer slightly better penetration in soft tissue.

The .357 Sig will usually give you higher capacity, the .45 offers a much wider variety of bullet weights, velocities, and construction.

The cost of ammunition is pretty close between the two.

A .357 Sig and a .45 +P have about the same amount of kinetic energy although they acieve it through different means (velocity vs. mass).

Both cartridges have numerous premium ammunition choices and both are chambered in a wide variety of guns (although the .45 probably gives you a bit more choice in guns).
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Old October 10, 2010, 01:58 PM   #5
Tuna2o3
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well how much power am i gonna lose out of a 33 vs 31 with the 357? I'm really looking for a smaller pistol than the Glock 31
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Old October 10, 2010, 02:04 PM   #6
Webleymkv
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well how much power am i gonna lose out of a 33 vs 31 with the 357? I'm really looking for a smaller pistol than the Glock 31
While it is impossible to predict what an individual gun might do, after looking at the velocity results for the .357 Sig over at Ballistics by the Inch, I would expect a G33 to give velocities 100-150fps less than a G31.

http://www.ballisticsbytheinch.com

Have you looked at the G32? It's in between the sizes of a G31 and G33.
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Old October 10, 2010, 02:26 PM   #7
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looks like I'll have to look at a Glock 32 then so i have some measure of comparison. but my biggest concern is weight that's the only gripe i have about my 1911. isn't a Glock 32 with 13 rounds of 357 SIG gonna be getting up there in weight. Capacity isn't really an issue because i never felt under armed with only 8 rounds of 45.
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Old October 10, 2010, 02:53 PM   #8
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If you get a proper belt and holster, weight really isnt an issue, regardless the platform. I carried 1911's, both full size and Commanders a good part of my life, and never had a problem. Same goes for the full sized SIG's, and now full sized Glocks. I often carry a 17 as well as a 26, and a double reload for the 17, with no troubles.

I have Glocks in all three versions, and of the three, the mid size really doesnt make much sense to me. The difference in size between the large and small is enough to warrant one or the other, but the mid size is really only slightly bigger or smaller, and really doesnt. At least for me thats the case.

Id choose the one you shoot the best, and go from there.
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Old October 10, 2010, 08:55 PM   #9
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I bought a Glock 27 (40s&w) for CC. I added a 9mm conversion barrel for practice, then I tried a friends Glock 33 (357sig). I fell in love with it. I bought a 357sig conversion barrel from Storm Lake and loaded my 40s&w mags with 357sig jhp ammo and CC it as a 357sig. It is 100% reliable like this or as a 9mm for that matter. Buy the G33 or the G27. Either will give you the option of 9mm, 40s&w or 357sig with just barrel & mag (with the 9mm)changes.
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Old October 10, 2010, 09:32 PM   #10
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My vote:







The GAP is the best shooting Glock IMO. I love to shoot my 39, and I can't say the same for G27's and G33's. The 30SF is a great shooter too, but considerably bigger than the 39. I sold my 30SF in favor of (another) G38.
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Old October 10, 2010, 10:22 PM   #11
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Why .357SIG over 9mm +P+?

Fairly straightforward answer: You get similar terminal performance, but the .357 SIG is safely within its normal pressure envelope, while the +P+ exceeds SAMI standards by an amount you really don't know. (+P is defined, but +P+ is not.)

This is kind of why I like a V8, working at low relative effort in my truck, vs a V6 of some sort trying to strain to its peak. They'll both move the truck, but the odds are the V8 will last a lot longer, with less issues.
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Old October 10, 2010, 10:26 PM   #12
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Quote:
If you get a proper belt and holster, weight really isnt an issue, regardless the platform. I carried 1911's, both full size and Commanders
I agree with above and those others will not conceal as easy as the 1911 either.
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Old October 11, 2010, 02:35 PM   #13
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If you're looking for smallest, you might as well remove all of the .45s, with the exception of the G39 (not on the list, I know). The G30 is almost as big as a G19, and the M&P Compact 45 is big too. The M&P Compact 357 is not so much long and tall, but fat. Of the ones on your list, the G33 is the smallest. Adding the G39, the 33 is still smaller only due to slide width. the 33 and 39 are on the same frame.

If none of this matters, get any of them.

From a CCW standpoint, the only things that set either apart are penetration and sound signature. The 357 probably penetrates with more ease than the short-barreled .45. The .45 will do less hearing damage to your ears than the 357.

You can expect an average of 100 FPS lost from the G31 to the 33. It still keeps it in the fast, full-size 9mm range.
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Old October 11, 2010, 03:06 PM   #14
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s&w m&pc 357sig. That's all I got!
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Old October 11, 2010, 11:05 PM   #15
Tuna2o3
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well i gone and done it now went to the gun shop and did a side by side comparison between a Glock 31,32,33,39 S&W m&P 45 and 357. Well needless to say that i am now the owner of a a Glock 32 w/night sights which the sales guy threw in for free I didn't think I would ever own a glock but it felt the best in my hand thanks everybody for the advice and opinions, cant wait to get to the range now
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Old October 14, 2010, 06:48 PM   #16
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All good carry options!
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Old October 14, 2010, 07:11 PM   #17
sdj
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Tuna,

Congrats; I carry the exact same firearm in a comp-tac 2 o'clock (and occasionally) the very inexpensive Uncle Mike's Size 15.

Please let us know how the it goes at the range.
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