9mm, 357 sig, 40 cal, 10mm, 45ACP, etc...? - Pistolsmith
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Old 04-21-2013, 08:08 PM   #1
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9mm, 357 sig, 40 cal, 10mm, 45ACP, etc...?

There was an interesting discussion I found reading back through the forum (just joined a few minutes ago) about the merits of 40cal vs other rounds like the 9mm, 45acp. The 10mm was mentioned too, but I was wondering where the 357 sig fits in since it is a 10mm short case with a 9mm projectile. My understanding is that some of the specialty government protection agencies (Secrete Service) use the 357 sig where as Alaska State Patrol uses the 10mm (allegedly in case of large carnivorous predators AKA bears...) Curious about the 10mm too. (... maybe spend too much time reading forums... )

I guess what I am wanting to learn is what each round it best at and what application it's best suited for, etc...

Thanks
 
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Old 04-22-2013, 05:57 PM   #2
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The 10mm round in it's full power loading is "more or less" the equivalent to the .41 Magnum.
It "fits" where you'd want the greater power and impact of a 10mm or .41 Magnum, as example when a bear gets in your face.
Few police departments use the 10mm because of the intense recoil and muzzle blast, and the bad experience the FBI had with it.
Many cops today are women and smaller men who have problems handling the necessarily larger framed gun and the blast and recoil.
In addition, the 10mm is seen as TOO powerful and too penetrating for normal police use.
As an cartridge for a game warden it might be a good choice, since game wardens have a history of using powerful handguns due to interaction with wild animals.

The .357 Sig is "more or less" the equivalent to the .357 Magnum.
The 125 grain jacketed hollow point .357 Magnum in a revolver got a great reputation for ending fights fast in the hands of the police.
The .357 Magnum was always known for being a good penetrator in auto bodies and some body armor, and was favored by Highway Patrol cops.
Some police departments, as example the Texas Dept of Safety/Texas Rangers wanted an automatic pistol that performed like a .357 Magnum revolver.

While there are a lot of law enforcement departments and agencies and they use a number of rounds, most are using the .40 caliber S&W or the .45 Auto, with the 9mm also popular.
The other rounds have only a limited following.

Last edited by dfariswheel; 04-22-2013 at 06:02 PM.
 
Old 04-22-2013, 06:21 PM   #3
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dfaris - I have to disagree with you regarding 10mm recoil. I have 2 Colt Delta Elites and a Glock 29. Even in the Glock Norma 10mm loads are manageable and albeit loud, aren't an issue. Of course to me recoil is relative; the hardest recoiling pistol I have surprisingly is a Detonics Pocket 9. Its design and probably lighter recoil spring makes 9mm +P painful to shoot.

Now if you want to talk flash bang recoil try 9X25 Dillon out of the Glock 29! Think 124 grain JHP 9mm at 1,700+ fps! The Lone Wolf drop in 9x25 Dillon barrel is one inch longer and is ported...and really helps.
 
 
Old 04-23-2013, 03:37 PM   #4
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Good info, thanks

Just out of curiosity, I did rent a G20 at the range just to see what it was like. I had shot my friends 1911 45ACP a couple of times and was wondering how the recoil compared. (Almost got the G20, but was concerned about finding ammo; in hind site, there is not really any ammo anywhere regardless of caliber.) Just from talking to people, I had expected a lot more recoil on both but neither seemed unmanageable, although that opinion may change once I gain experience and figure out what I'm doing... (but I have heard that the garden variety 10mm are underpowered.) Would imagine there is a difference in recomposing for the next shot when someone is shooting back as opposed to a paper target...

Been thinking about getting the 357 sig barrel for my G22, but that stuff is even harder to find than 40 S&W. Also got a 10mm something on my wish list... not sure why though.
 
Old 04-25-2013, 07:35 PM   #5
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Glock

If you are insistent about a Glock and really want some versatility then I recommend either a 20 or 29 in 10mm. Since 10mm is the parent cartridge for .40 S&W, .357 Sig, and 9x25 Dillon all you need to do is go to Lone Wolf and buy the .40, .357 Sig, and 9x25 Dillon barrels and have a whole lot of choices. Its like having 4 Glocks for less then the price of 2!



These are for my Glock 29, that Glock describes as a sub-compact. I have trouble believing it to be a sub-compact especially when loaded with 11 rounds of 10mm!
 
Old 04-25-2013, 09:14 PM   #6
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Really like that pic! Thanks.
 
Old 04-25-2013, 09:23 PM   #7
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Quote:
Originally Posted by cwo4uscgret View Post
dfaris - I have to disagree with you regarding 10mm recoil. I have 2 Colt Delta Elites and a Glock 29. Even in the Glock Norma 10mm loads are manageable and albeit loud, aren't an issue. ...
The original 10mm load, by Norma, was a 200gr bullet at 1200fps from a 5" barrel. That is what DFW was referring to.
 
Old 04-26-2013, 12:32 PM   #8
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retDAC - and that is what round I was shooting out of the Glock!
 
Old 04-26-2013, 08:41 PM   #9
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Rolled your own or factory? If the latter, what make?
 
Old 04-27-2013, 03:02 AM   #10
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I use to have a Colt DE and at the time the only brass I could get was from reloading the Norma factory loads.

Manageable recoil with the factory load, but for my purposes, I reloaded with a 180gr SWC at approx. 1000' per second.

That was in Europe, shooting IPSC, back in the '80's. Load info was hard to find, but what I worked up seem to do okay and was able to get numerous reloads from cases.
 
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