Glock 20 10mm Question

M

Model12Win

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Guys I'm wanting to get a Glock 20 in 10mm but the ammo is pricey... do you think I could also get a .40 S&W barrel from Lone Wolf etc. so I could use both types of ammo? No I don't reload and no I don't intend to start. I just like the idea of basically a 16 shot .357 magnum power level handgun that I can also shoot cheap .40 S&W through for training purposes.

Thoughts?
 
It depends on how much you shoot. I just checked ammoseek.com and it looks like .40 is about $.10 cheap per round. I'm guessing the barrel is around $100. So after 1,000 rounds of shooting you'll come out ahead.
 
VoodooMountain said:
I’ve never tried it in my 20 but a lot of guys shoot 40 in your 20 as is without any modifications or another barrel.

http://https://www.google.com/amp/www.thetruthaboutguns.com/2015/06/jeremy-s/40-in-a-10mm-glock/amp/
Click to expand...


I wouldn’t...

I’m sure it works for people who try it, but why would I want to add more stress to an extractor? The only thing holding a .40 inside a 10mm chamber is the extractor. So, you have that stress (firing pin hitting a case that has forward give), as well as pulling the fired case out of the chamber, and being the fixed point that allows the case to eject when the slide allows the ejector to protrude.

The only way I’ll shoot .40 (or .357 SIG) out of my 1006 is if that project on S&W Forum ever moves forward... and I get the two conversion barrels I wanted.
 
When I owned a 1006, it was suggested in a magazine article that using 40 in it was acceptable.
Since 10mm was scarce, I tried it. My LGS had Federal classic 40s&w 155gn jhp cheap, and it shot great. No issues whatsoever, about 400 rounds.
With a Glock 20, barrels are pretty cheap and available...I’d go that route.
 
My Glock 29 was my primary EDC for 7+ years so the idea that shooting .40cal from it and even possibly stressing the extractor or smacking the end of my 10mm chamber with .40cal
on a pistol that I carried for defense? That wasn't something I would ever do.

If it was just a fun gun, maybe I would try it... a Glock afterall, not a museum piece.

So I sprung for a KKM barrel for it chambered in .40cal. A drop-in, no fit required deal. It still runs absolutely 100% and I have a documented 3,000+ rounds of .40cal through it.

That's what I did and that's what I would do again.
 
You can find 10mm ammo priced right if you look around, I get it cheaper than 45 and only slightly more than 40 S&W. You'd have to shoot a ton of 40 ammo to pay for the extra barrel. I also have Glocks in 9mm for even cheaper practice.

And I've tried 40's in the G20 and G29. They work just fine with no modification. You MIGHT cause some extra wear by doing this, but I doubt it. At most you might need to clean the barrel and chamber more often and carefully.

I'd just shop around for cheaper 10mm ammo and if you needed to shoot 40's occasionally would do so.

I buy most of my ammo from these guys.

http://www.georgia-arms.com/new-10mm-180gr-full-metal-jacket/
 
Cheap 10mm typically is at 40 levels. What's the point if that's what you are going to majority shoot?

Question is, are you going to REALLY shoot the fiercest 10mm rounds like Underwood or BB? If not, 10mm is pointless.
 
wild cat mccane said:
Cheap 10mm typically is at 40 levels. What's the point if that's what you are going to majority shoot?

Question is, are you going to REALLY shoot the fiercest 10mm rounds like Underwood or BB? If not, 10mm is pointless.
Click to expand...
Yes I plan to buy the Double Tap loads from Mike McNett. I hear they are full-power, giving 750 ft-lbs of energy from a Glock 20 with their 155 grain load. I also want to try Underwood ammo too.

I do shoot a far amount and 200 rounds or so per range session isn't uncommon for me. Someone said I could pay of the .40 S&W barrel in about 1000 round of ammo.

So I'm getting conflicting report on whether or not it's okay to shoot .40 in a stock G20? As this could be a defensive gun, I'd rather not put stress on it.

Comparing 10mm and .40 costs, ammoseek.com shows a roughly $0.10 cents difference per round, so .40 S&W is about 50% less costly to shoot:

https://ammoseek.com/ammo/10mm-auto

https://ammoseek.com/ammo/40sw

I certainly plan to shoot much more than 1000 rounds of .40 in the gun. I have access to a public shooting area in the desert so go to the range much more often than I used to.
 
I've owned a glock 29 and two different glock 20's in the past for my woods carry guns. The glock 29 always felt like a brick, being so short and fat. The glock 20 was much larger, and then the last one I cut the grip to the 29 size, added a bumper on the bottom of the mag so it ended up the grip length of a glock 19 (perfect) and had the longer sight radius and longer velocity of the glock 20 barrel. Only reason I sold it was because I moved over to revolvers for my woods carry and only being to have three guns on the carry permit, the glock got sold. Carried the DT and BB in the woods and shot with Federal american eagle at the range.
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But most likely will own another in the future, but the SF model.
 

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My Glock 29 was my primary EDC for 7+ years so the idea that shooting .40cal from it and even possibly stressing the extractor or smacking the end of my 10mm chamber with .40cal on a pistol that I carried for defense? That wasn't something I would ever do.
Click to expand...

Totally agree. :cool:

My Glock 29 was my primary EDC for 7+ years so the idea that shooting .40cal from it and even possibly stressing the extractor or smacking the end of my 10mm chamber with .40cal
on a pistol that I carried for defense? That wasn't something I would ever do.

If it was just a fun gun, maybe I would try it... a Glock afterall, not a museum piece.

So I sprung for a KKM barrel for it chambered in .40cal. A drop-in, no fit required deal. It still runs absolutely 100% and I have a documented 3,000+ rounds of .40cal through it.
Click to expand...

Did that too but with a LWD .40 tube (stock length). Runs great.
 
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Won't answer for anyone but myself...

Carried 10mm and practiced with 10mm when I was shooting on my preferred range where I had no problem corralling my brass. Anyone who has ever loved and handloaded 10mm since before the the turn of the century knows the fantastic pain and suffering of losing 10 brass.

The KKM .40cal barrel allowed me to shoot at day-long functions, events with lost brass stages and other assorted places where losing .40 brass is no care whatsoever.

Sure, the recoil is a little less, and one could make vitriolic rants with regards to "training one way and carrying another" (blah blah blah blah save it, loudmouth) but all of it was enjoyable trigger time that made me a better shooter, and I never lost a single piece of 10mm brass doing it.
 
Screwball, I don't think Cheapshooter was referring to the problem of shooting .40 in 10mm, but that why buy a powerful caliber and then shoot only .40 low power in it. i.e. "chop off 2 cylinders"
 
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