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Old 10-12-2012, 16:14   #1
arnettjd10
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Interesting test results and question about ammo?

I have been debating on getting a pistol in 357 Sig, i really like the 9mm and this round is like a 9mm on steroids. But i sit down and watched Tnoutdoors9 tests and wrote down all the results. After going back and looking at them i found that 357 Sig 125 gr had a velocity of about 1,336 fps with about 14.50in of penatration. The Underwood 9mm +P+ 124 gr shot at 1,298 fps with about 13.25in of penatration. So now im thinking that with the high cost of 357 Sig ammo and barely better performance over the 9mm that i would be crazy to buy a handgun in 357 Sig, not to mention the reduced round magazine capacity. But i know to achieve the results of the 9mm test i am pretty much limited to Underwood ammo. (all of the tests on this ammo that i have seen has been great!) So my questions are: I want everybodys opinion on Underwood ammo and why would people buy a gun in 357 Sig when u can get pretty much the same results with cheaper ammo and more magazine capacity with the 9mm?
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Old 10-12-2012, 16:24   #2
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I would never want to rely on a boutique ammo manuf for my carry rounds, That is just me, but if it doesn't come from one of the majors, I am likely not going there. So yes, there are a few +P or +P + loads that are close to 357sig, but they are not cheap compared to 357sig, often cost more. Round count, depends. In Kommifornia, I get 10+1, regardless fo caliber, so round count is pretty moot. I would go 357sig over 9mm in the same platforms. I like the 357sig, shoot it as well as 9mm+P+ so I'll take the extra 75-100fps. In smaller compact or subcompact, I choose the 9mm in a +P laoding. Cost of ammo doesn;t matter to me as I relaod all my practice stuff & 357sig loads for the same cost as 9mm+P.
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Old 10-12-2012, 16:44   #3
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As Fred says above, unless the ammo has "street cred" it's probably better to not use it for CCW.

That said, I have had good results from Underwood ammo and many others have, too. But it hasn't "paid its dues" in LEO guns, etc. The final decision is up to you.
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Old 10-12-2012, 17:35   #4
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I've settled on two self-defense calibers, the 9mm and .357sig. If I had to choose only one it would be the .357sig because of its greater overall range and application. Like fred mentioned it's a disadvantage to rely on a single boutique ammo company's supply for your ammo needs.

There is a greater supply of effective 9mm self-defense ammo but where the 9mm is pushing the envelope for that caliber the standard, run-of-the-mill .357sig self-defense rounds aren't even breathing hard.

I carry my 9mm pistols more frequently than my .357sig because of their easier CCW conceal ability, not for their semi-equivalent effectiveness. If you do end up with a .357sig pistol I do think you'll appreciate the fine distinction between the two calibers while acknowledging the worth of both.
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Old 10-12-2012, 18:31   #5
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With a 125gr bullet in the 357Sig case you should be able to get 1400fps from a full size Glock. That's a respectable difference between a 124gr in a 9mm casing moving at 1200-1250fps. I'm going to have to pick up a G32 barrel for my G23.
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Old 10-12-2012, 20:34   #6
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If you go with the Glock platform, why not get the .357 sig and by a 9mm conversion setup in 9mm. Shoot more often in 9mm and save some change, shoot more sparingly in .357 sig to maintain proficiency. Practice with 9 carry .357.

The .357 is far from being out of breath as far as popularity is concerned, more choices may be on the horizon. That being said, Underwood may grow, giving more confidence as a supplier. He may never be as big as the big three (or care to be) but being a mainstay such as Corbon or BB is a strong possibility.

Getting the Glock platform in .357 is your "cake and eating it too" scenario once you have the conversion in 9mm.
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Old 10-12-2012, 20:53   #7
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Underwood 9mm +p+ 124gr = 1,298fps
New Underwood 357 sig 125gr = 1,475fps (as stated by Underwood on GT, not tested yet by TNOutdoors9)

The rounds tested by TNOutdoors9 for 357 sig are all loads from the bigger guys that don't make hotter 357sig loads(Federal, Remington, Speer, hornady).

Let's compare apples to apples.

Having said all of that, the 9mm is a fine cartridge and would serve you well.
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Old 11-27-2012, 10:19   #8
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[QUOTE=avenues165;19512900]Underwood 9mm +p+ 124gr = 1,298fps
New Underwood 357 sig 125gr = 1,475fps (as stated by Underwood on GT, not tested yet by TNOutdoors9)

The rounds tested by TNOutdoors9 for 357 sig are all loads from the bigger guys that don't make hotter 357sig loads(Federal, Remington, Speer, hornady).

Let's compare apples to apples.

Having said all of that, the 9mm is a fine cartridge and would serve you well.[/QUOTE

TNOutdoors9 test on Uderwood 357 sig 125 gr. jhp ammo-

http://www.underwoodammo.com/357sig1...ntboxof50.aspx
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Old 10-12-2012, 20:31   #9
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.357 Sig is still faster.

Also, are you going to be able to replicate the shooting characteristics of this ammo with your practice ammo? And is this stuff going to be hard on the gun?

Last edited by cowboy1964; 10-12-2012 at 20:37..
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Old 10-13-2012, 00:09   #10
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I'm just not a fan of the 357 Sig. Just not.

For decades people wanted SOMETHING between 9mm and 45 ACP - give them the 10mm Auto and 40 S&W, but they're not happy. So what's the next GREAT thing? Neck down the 40 S&W so we can have the reduced magazine capacity of the 40 S&W with the smaller bullet of the 9mm - OUTSTANDING! Really? Aren't we kind of re-inventing the wheel? 38 Super Comp seems like a better solution - just because of magazine capacity.

It just seems a bit odd.

Now that said... the 357 Sig is a fine round. Nothing WRONG with it. The thing that makes me "not a fan" is there is a lot of hype about it - "flat shooting", "unbelievable manstopper", etc.

With proper bullet selection there isn't a nickel's worth of difference between 9mm, 357 SIG, 40 S&W, and 45 ACP. Shot placement with any of them will get the job done. Each caliber has advantages and DISADVANTAGES. Choose any caliber you want, but understand your decision has compromises.
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Old 10-14-2012, 13:53   #11
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Originally Posted by SDDL-UP View Post
I'm just not a fan of the 357 Sig.
With proper bullet selection there isn't a nickel's worth of difference between 9mm, 357 SIG, 40 S&W, and 45 ACP. Shot placement with any of them will get the job done. Each caliber has advantages and DISADVANTAGES. Choose any caliber you want, but understand your decision has compromises.
if that was true everyone would shoot 9mm, why shoot anything else.
in the real world good shot placement, although hoped for, very seldom happens when the shooter and the shot are in motion.
I have seen what those calibers do on animals and the results are quite different, especially the sig.
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Old 10-14-2012, 14:44   #12
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if that was true everyone would shoot 9mm, why shoot anything else.
in the real world good shot placement, although hoped for, very seldom happens when the shooter and the shot are in motion.
I have seen what those calibers do on animals and the results are quite different, especially the sig.
9mm ammo is the least expensive of all of them, but ammo price is not even in my top five of reasons to choose a caliber. I have chosen 9mm because I have a G17. If I had a G22 I would use .40 S&W.
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Old 10-14-2012, 16:03   #13
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I think the 9mm is a fine choice for SD, as is the 357sig, .40s&w, 10mm, 45gap, 45acp, 357 mag, etc. But, none of them are the same. They are all different for different applications, preferences, etc.

It would be boring if they were all the same. I like options!
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Old 10-14-2012, 16:37   #14
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I think the 9mm is a fine choice for SD, as is the 357sig, .40s&w, 10mm, 45gap, 45acp, 357 mag, etc. But, none of them are the same. They are all different for different applications, preferences, etc.

It would be boring if they were all the same. I like options!

Of course. The caliber choices for me depend on the purpose I need it for and I do wonder why so many people --- after having chosen a perfectly adequate caliber --- give in to some anxiety over whether or not they picked the "right" one.

I'm not a hunter but if I was I would need a pistol of a different caliber from the two primary handgun calibers I own. That is, if I was ever inclined to hunt with a handgun.
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Old 10-16-2012, 20:08   #15
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I'm just not a fan of the 357 Sig. Just not.

For decades people wanted SOMETHING between 9mm and 45 ACP - give them the 10mm Auto and 40 S&W, but they're not happy. So what's the next GREAT thing? Neck down the 40 S&W so we can have the reduced magazine capacity of the 40 S&W with the smaller bullet of the 9mm - OUTSTANDING! Really? Aren't we kind of re-inventing the wheel? 38 Super Comp seems like a better solution - just because of magazine capacity.

It just seems a bit odd.

Now that said... the 357 Sig is a fine round. Nothing WRONG with it. The thing that makes me "not a fan" is there is a lot of hype about it - "flat shooting", "unbelievable manstopper", etc.

With proper bullet selection there isn't a nickel's worth of difference between 9mm, 357 SIG, 40 S&W, and 45 ACP. Shot placement with any of them will get the job done. Each caliber has advantages and DISADVANTAGES. Choose any caliber you want, but understand your decision has compromises.
This is the correct answer.
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Old 10-16-2012, 22:40   #16
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SCmasterblaster, yes that was a typo, I held down the + button too long. Should have read +P+.
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Old 10-17-2012, 13:22   #17
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SCmasterblaster, yes that was a typo, I held down the + button too long. Should have read +P+.
OK, no problem.
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Old 10-13-2012, 02:02   #18
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Boutique ammo? How about Federal they started out small or corbon or any of the other smaller mfg's with a good rep? I run Underwoods 124 +p+ load and have fired quite a bit in my 19 and 26 and it has been flawless and quite accurate to boot, Is it s a 357 sig? Nope but the 357 sig is not a 357 mag either. A warm 9 midweight will handle just about anything that I'm likely to get into it with.
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Old 10-13-2012, 09:37   #19
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Is it s a 357 sig? Nope but the 357 sig is not a 357 mag either
Actually it's about exactly equal to a 125gr .357 Magnum from a 3" revolver.

Last edited by cowboy1964; 10-13-2012 at 09:38..
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Old 10-13-2012, 12:30   #20
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Originally Posted by 9mm +p+ View Post
Boutique ammo? How about Federal they started out small or corbon or any of the other smaller mfg's with a good rep? I run Underwoods 124 +p+ load and have fired quite a bit in my 19 and 26 and it has been flawless and quite accurate to boot, Is it s a 357 sig? Nope but the 357 sig is not a 357 mag either. A warm 9 midweight will handle just about anything that I'm likely to get into it with.
A good 9mm load will be a great SD round, no question about it. If I was using a 9mm I would probably use a 124gr +p or +p+.

I like the 357, but there is nothing wrong with the 9mm. In fact, the 9mm has some advantages: additional rounds in the mag, cheaper range shooting, less recoil, less wear on pistols, etc.

I prefer the 357, but I would never get down on the selection of a 9mm. But I do feel to call them the same isn't accurate, as stated in the post I quoted. Different options are wonderful, long live the 9mm, .40S&W, 357sig, .45 gap, .45acp, 10mm, etc!!!!

How's that for diplomacy and peace makin'?
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