GLOCK 20 vs. GLOCK 21


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Greg8098
October 20, 2006, 06:01 AM
In a perfect world where 10mm auto ammunition was just as available and the same price as .45 acp, which GLOCK model would you prefer to own.

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jagdpanzer347
October 20, 2006, 09:17 AM
Since I've got a .45acp already, I took the 10mm. The G20 would be an excellent big brother to my G22. Extreme amount of power in a lightweight package.

-jagdpanzer

Glockfan.45
October 20, 2006, 09:30 AM
If cost and availability were not an issue then the 10mm wins hands down.

HighVelocity
October 20, 2006, 09:33 AM
G20 :D

GunNut
October 20, 2006, 03:42 PM
Buy the Glock 21 for cheaper practice ammo, then order a KKM 45-10mm barrel and shoot 10mm.:D

KKM Barrel is $165 (www.kkmprecision.com)

Get some Glock 20 mags, and possibly a heavier recoil spring/guide rod and you are set with two calibers.

Just make sure that the Glock 21 has the Loaded Chamber Indicator extractor.

Steve

KC&97TA
October 20, 2006, 04:24 PM
I'm a 1911 kind of guy... I love the G 20. It will actually shoot factory .40 S&W from the same mags and everything, have had a few problems shooting lightly reloaded rounds or you can put a G 22 barrel into it and as you know .40 is cheaper than 45acp.

GunNut
October 20, 2006, 04:26 PM
No, you cannot put a Glock 22 barrel into a Glock 20......and shooting .40S&W ammo out of a stock Glock 10mm is not recommended.

Steve

ajkurp
October 20, 2006, 07:34 PM
Not recommended by whom, and not recommended for what reason?

agtman
October 20, 2006, 09:08 PM
Let's get serious. This isn't even close to being close.

Even in an imperfect world, the thinking pistolero still chooses the Glock 20 in 10mm AUTO.

* More power.

* More versatility of use.

* Greater mag capacity.

* Flatter shooting - with more down-range smack at distance.

* A HUGE range of available bullet-weights in factory ammo or for reloading (i.e., 135gns to 230gns), from which to select for the particular task at hand.

* The gun itself, the G-20, is easily a sturdy 4-in-1-gun. Only a barrel swap is needed to shoot other calibers (i.e., 10mm, .40S&W, .357Sig & 9x25 Dillon). Hence you can save big $$$ on the cost of getting separate guns & mags.

How easy could the choice be? Hmmmm? :scrutiny:

:cool:

Greg8098
October 20, 2006, 09:46 PM
I totally agree with agtman. I love my G20 and G29, probably the only pistols I will ever keep. I only regret that I gave away all my 357sig ammo when I traded off my G31 and G32 :uhoh: . If I only would have known that I could buy these barrels for the 10mm GLOCKs. By the way where can you get them from anyway?

P.S - Never mind, the questions already been answered.

CleverNickname
October 20, 2006, 09:53 PM
Which is better, a Toyota or a Ferrari? One caveat: Imagine that you don't have to pay for gas or insurance. :neener:

Really, comparing these guns without taking the cost/availability of ammo into account is sort of silly. I used to have a Glock 20 and now own a Glock 21 for exactly this reason. If you really want to shoot 10mm, buy a 10mm barrel for the G21 as suggested above.

Marshall
October 20, 2006, 10:14 PM
Really, comparing these guns without taking the cost/availability of ammo into account is sort of silly.

Not necessarily. He may be financially well enough to where it makes no difference to him. :)

CSA 357
October 20, 2006, 10:22 PM
im just a 45 kind of guy i guess,

Greg8098
October 20, 2006, 10:59 PM
I guess the G20 is the Ferrari, and the G21 is the Toyota :neener: ! I know which one I would take if I was offered either one for free with a lifetime supply of ammo ;) ! I like the .45, and I think the GLOCK 30 is the best compact version on the market, but I just can't get over the awesome ballistics of 10mm :D .

JohnKSa
October 20, 2006, 11:26 PM
ajkurp,

Shooting 40S&W out of a 10mm barrel puts extra stress on the extractor and can lead to unusual fouling at the chamber/rifling transition that can be dangerous under certain circumstances.

It's not likely to lead to an immediate catastrophe, but I wouldn't do it unless there were a REALLY good reason.

If you want to shoot 40 in a 10mm, you should buy a conversion barrel.

GunNut
October 21, 2006, 12:07 AM
JohnKSa,

Thanks for answering for me.

I used to think it was no big deal, but have been told many times(especially in glocks) that shooting .40 out of a 10mm was asking for trouble.

I still think that a Glock 21 w/a KKM barrel to shoot 10mm is the best way to two guns.

Steve

10-Ring
October 21, 2006, 01:00 AM
On one hand, I really like 10mm so the 20 is very appealing. OTOH, I have had a a 21 kb in my hands & I really don't plan on going through that again.

Which would I chose...all things being equal????

Voted g20 in this poll ;)

SAG0282
October 21, 2006, 01:18 AM
I prefer the G20 in the world we live in now, so it'd be no contest in a perfect world.

Oregongundude
October 21, 2006, 02:53 AM
The only problem with the 10 mm is the possibility of over peneration. Some of the rounds push in the 800's in energy level. It's a good round for BG's and some medium size animals in an automatic. I like the .45 acp and own one, but the 10 mm is far superior in many ways.

I like the Glock 20 myself.

:)

jlh26oo
October 21, 2006, 04:34 AM
Perfect world: I'll take the 10mm. Same price, higher capacity, more punch.

Real world: I don't hunt with handguns, 10mm $ > .45acp $, not big on transformaguns*; I'll take a G21.








*although I'd take a 32 and make it into a 19 for some reason. I really WANT to believe there is something to the .357sig.

DJGrant
October 21, 2006, 05:03 AM
I own a GLOCK 20, and a Colt M1911.
However, if factory 10mm ammo was more available, and in the same price range as .45acp, I'd choose and use the GLOCK 20 exclusively.

In fact, in my 'perfect world', 10mm ammo would be available at the same cost as 9mm ammo:rolleyes:

DJ

R-Tex12
October 21, 2006, 04:01 PM
GunNut wrote:

"Buy the Glock 21 for cheaper practice ammo, then order a KKM 45-10mm barrel and shoot 10mm.

KKM Barrel is $165 (www.kkmprecision.com)

Get some Glock 20 mags, and possibly a heavier recoil spring/guide rod and you are set with two calibers.

Just make sure that the Glock 21 has the Loaded Chamber Indicator extractor.

Steve"


I have 2 questions.

Can someone tell me the reason for making sure the G21 has the loaded chamber indicator extractor? Also, is it equally feasible to buy a G20 and then pick up a .45 barrel for shooting .45ACP?

TIA,

Rick

GunNut
October 21, 2006, 05:55 PM
Rick,

The Glock 21's with the loaded chamber indicator, are large enough and angled right to pick up the small diameter 10mm case rims.

You cannot shoot .45ACP's in a 10mm slide, because the larger .45 will not fit on the breach face(?) of the slide.

If your 3rd gen Glock 21 does not have the LCI, it can easily be upgraded too.

Steve

R-Tex12
October 21, 2006, 06:35 PM
Thanks, Steve!

I knew there'd be a reason! :)

I didn't know about the .45's not fitting the G20 slide/ breech face. You taught me something today. (No easy task. :D )

Thanks again,

Rick

gandog56
October 21, 2006, 06:38 PM
I reload, so cost of ammo was not the issue. But I figured it would be a heck of a lot cheaper to put a .400 Cor-Bon barrel in my .45 than to buy a new 10 mm.

SoCalShooter
October 21, 2006, 07:28 PM
I have fired both and really liked both but I load for .45acp and I would have to get a new die set for the 10mm not to mention I am also a 45 kinda guy.

JohnKSa
October 21, 2006, 08:00 PM
If your 3rd gen Glock 21 does not have the LCI, it can easily be upgraded too.Just a heads up--the LCI extractors won't fit all the Glocks. They'll only fit the models that have the angled cut on the extractor side of the slide.

I don't know exactly when the changeover to the angled cut was made...maybe all the third gen guns have it.
http://www.thehighroad.org/attachment.php?attachmentid=46692&stc=1&d=1161471608

R-Tex12
October 22, 2006, 11:09 AM
Thanks, JohnKSa, that's good info.:)

Blacklabman
October 22, 2006, 02:14 PM
I would take the G20, hands down.

critrxdoc
October 22, 2006, 04:08 PM
The 10mm is to the auto world, what the .357mag is to the revolver world:D

crunker
October 22, 2006, 04:31 PM
Nothing like 10mm to prove a point.

KINGMAX
October 22, 2006, 07:29 PM
I happen to own a GLOCK 21. The old 45 round goes back along way with me. I have shot up, well - way too many to count of the old .45 acp rounds. I was lucky enough to carry one during my time in service. I guess it carried over as one of my favorite rounds.

My choice to carry daily and/or on road trips is either my GLOCK 21, or a S&W 686-1 in .357. :fire: :D :evil: :D

Stevie-Ray
October 22, 2006, 08:12 PM
I chose the G20. That's because I want another 10mm and this is the one I want.:D

.45 ACP is still my favorite caliber, but I'll always have a soft spot for the 10, and there's no arguing it's versatility.

Lennyjoe
October 23, 2006, 12:27 AM
Definitely the G20 not cause I own one but the .45 belongs in a 1911;)

AZGlock13
October 23, 2006, 08:16 PM
G20 hands down.:)

Deer Hunter
October 23, 2006, 08:20 PM
10mm, hands down. In a perfect world, it would have been the first autoloader I bought. I was really thinking about getting one, but I picked a CZ 75 because I can't get 10mm anywhere except on the internet.

gandog56
October 23, 2006, 08:53 PM
Once again, reloading is the answer.;)

SouthpawShootr
October 23, 2006, 11:05 PM
I shoot my G20 better than my dad's (now mine through some horse trading) G21. The gun just works better for me. Wish I could come up with a scientific reason why. Capacity is higher, of course. Bullet energy should, at worst, be even, but is probably far superior. My G20 is just a blast to shoot. It was my first (of two) 10 mms. My second 10 is a Kimber Eclipse that I haven't had out to the range yet.

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