GLOCK 10mm

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kayak-man

kayak-man

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Hey guys, I'll try and keep this one short:

I've been looking for a new back country gun for a while now, and so far, the 10mm GLOCK pistols are looking pretty good. I'm trying to narrow it down between the G20SF and the G29SF.

Could someone fill me in on how the two differ in terms of muzzle velocity and felt recoil? I've heard you can load lighter rounds for both guns to make them manageable, but I'm looking for info on the hotter loads.

Thanks,

Chris "the Kayak-Man" Johnson
 
Buffalo bore has loads over 700fpe, and you can drop in a 40 barrel to practice with.
 
Should be about the same. I have a 20sf for GP carry and backcountry use and I love it. Recoil is a non-issue. You will love it.
 
i would go for the 20. full grip, higher capacity, and longer sight radius are all things i would want in a "back country" gun.
 
I looked at the same issues and went with a 29SF. The shorter grip fit my hand better and the 29SF accepts the 20s magazine so you do not have to sacrifice capacity. It was also noticeably lighter which matters to me when I hike. the 29SF was the perfect compromise for me between power, capacity, and weight.

I also shot an IDPA match with it and the recoil was very manageable. The Glock frame really "tames" the 10mm round.
 
Which is why the 6" barrel in my G20 rules.

As far as "shootability", the G29 is surprising for such a full-house little package. Neither of mine are SF and I have never held an SF model to know what they feel like.

I have several sleeves that fit over G20 mags so that it gives the G29 a full sized grip. THAT is the ticket.
 
I've got the glock 29sf and it has become my new carry pistol. I originally bought it primarily to pop my 10mm cherry but I tend to shoot it faster and more accurately than my other carry pistols.
 
I have some Doubletap 200 gr hardcast that they used to advertise at 1300 fps. My G20 chronographs it at 1315, so it is pretty close to advertised. I see they are now advertising it @ 1275 from a G20, 1225 from a G29. I'm not sure 50 fps will matter, but the slightly longer sight radius of the G20 might make it easier to shoot more acurately.

I chose the G-20, but the 29 is a bit easier to carry and G20 magazines can be used if you want more ammo capacity. Either gun is smaller and lighter than most revolvers and offer better ballistic performance. A hot 357 will equal hot 10mm, but needs 6" of barrel to do it and 8" to better it. The G-20 is actually about the same length and weight as a 3" Ruger SP-101, the G29 is about equal to a 2" SP-101, but either will easily beat ballistics and accuracy from those short barreled 357's.

Even with the hottest loads a Glock 10mm is much easier to shoot than a 357 revolver. The wide backstrap, Glock grip angle and plastic soak up felt recoil dramatically. Standard 45 ACP from a 1911 has much more recoil.
 
I shoot both a G20 and G29; like 'em both. I'd feel comfortable with either, but the G29 sure is easier to carry. The difference in velocity would be irrelevant, in my opinion. I also don't have a problem shooting the shorter sight radius Glocks accurately. In my humble opinion, sight radius for semi-auto handguns is overblown. Also don't believe that enough velocity is gained by 6" barrel, in order to justify having a barrel sticking out of the slide. :)
 
I have a 29 SF and use Pearce +0 magazine base plates with pinky extension.

The only ammo I've used is Hornady 155 XTP.
Out of my 29SF the Hornady averaged 1,278 fps / 562# KE
Recoil from that load is about like a Glock 30 shooting 230 gr. Ranger T (subjective)

G29 Hornady 155 gr. @ 1,278 fps = PF 198
G30 Winchester 230 gr. Ranger T @ 874 fps = PF 201

Power Factor (PF) is an objective way to compare recoil out of same size pistols. bullet weight x bullet speed / 1,000 = PF

That ^ full power 10mm load produces no more recoil than a 45, but a lot more KE (230 gr. @ 874 fps = 390# KE)
 
20SF loaded with 180 Grain JHPs for two legged threats or thin skinned four legged threats, and 200 Grain Hardcast or FMJs for thick skinned four legged threats.

Just my .02,
LeonCarr
 
Oddly, to me the felt recoil through either the 29 or 20 (not SF) is about equal (the 29 wearing a grip extension). As to relative velocities, looking at Double Taps figures can help, as the usually list both G29 and longer-barrel velocities (as jmr40 mentions).

For example, they list for their 165gr BJHP load 1400fps form a 5-inch barrel (G20 is 4.6), and 1340fps from the 29.

(Yes, I know a lot of folks claim DT distorts their numbers, but if they distort both numbers, the difference should still be about the same. :D)

Personally, I like their 125gr TAC-XP load for SD/HD.
 
I have both the G20SF and the G29SF. I carry the 20 because the holster options for hiking are better. Once I find a holster maker who can make me a decent nylon flap holster for the G29, I'll switch over to that. Until then it's the G20SF. Buy both, you will sooner or later anyway. ;)

Packinsnow3.png
 
Mainsail: Deep down, I know I'm going to end up with both eventually. I guess I'm trying to decide which one to buy first, and if the 29 is even worth getting, or if it will be uncontrollable. Right now, I'm leaning towards getting the G29SF this season, since I'm not planning on going too far into the back country, but I may be doing hikes with groups and want to be able to conceal the gun, then getting the G20SF next season when I'll probably be a bit deeper in the back country.

I hear ya on the holsters! I've been trying to think of a way that I can carry it (preferably concealed) without the hip straps on the pack getting in the way, but so far, I'm coming up with nada.

Thanks for all the input so far guys, by all means, keep it coming!

Chris "the Kayak-Man" Johnson
 
The G29 can be made bigger with a longer after market barrel and a 15 round G20 mag. The G20 can't be made smaller.

I have 15 round mags and a Storm Lake 4.48 inch barrel in my G29 for woods use. Basically a G20. For carry I switch back to a stock barrel and 10 round mags with Pearce +0 pinky extensions.

2 guns in one.
 
IMAG1031.gif

I use the above franken-glock for instances like this. 6'' KKM barrel gets 1500fps out of Underwood 10mm 165gr Gold Dots. Giddy up.
 
I have 29 and 20SF with 6.61" barrel with LW compensator. Both easy to shoot with hot loads, but with the comp, it is like shooting a 9mm.
 
G20 & G29 combo

Mailsail said:
I have both the G20SF and the G29SF. I carry the 20 because the holster options for hiking are better. Once I find a holster maker who can make me a decent nylon flap holster for the G29, I'll switch over to that. Until then it's the G20SF. Buy both, you will sooner or later anyway.
Click to expand...

That same holster will work just fine with your G29SF.

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So, that KKM conversion barrel extracts o.k., 100% of the time?
Click to expand...

Here's what I wrote after trying out the set up for the 1st time:

"So I, like most of you at one point or another, was 10mm curious but not quite enough to shell out the money for a G20/Delta Elite/ect... So, I picked up a 10mm mag, LWD 20lb guide rod and spring, KKM 6'' conversion barrel, and a LWD 10mm extractor and went to work!

So far, I have 100 rounds of Prvi 180gr JHPs, 200 rounds of Blazer 200gr FMJs, and 50 rounds of Underwood Ammo 165gr Gold Dot JHPs through this combination with 0 failures of any kind and consistent ejection to the 3-5 o'clock position with all but the Prvi ammo. That ammo jumps all over the place weakly (with either recoil spring) like my Gen4 19 that has been back to Glock 2 times now because I don't think thats acceptable. But, with a conversion set up for hotter ammo, I'm not complaining.

I set up my chrono (but forgot a pretty important part; SMH...) to test the speed of these three rounds through this barrel and as expected the Underwood Ammo 165gr JHPs performed well. I'd love to see some of these rounds in ballistics gel because if the recoil impulse is any indication I'm betting they're nasty little rounds. While the recoil is certainly more with the Underwood than the other rounds, it's not enough to discourage you from shooting it; in fact just the opposite. It's good times!"

Write up with chronograph video results:
http://gunreviewguy.blogspot.com/2012/04/g21-10mm-conversion-with-chronograph.html

I've put another 200 rounds through it since---0 issues.
 
I bought a 29sf and loved it, decided I wanted something that offered more in terms of velocity and since I already had a sp101 in 357 I would sell the 29sf for a 20sf. I happened to find a good local deal on a 20sf so I jumped, then I got a 357sig barrel for it and shoot it more than I ever thought. I changed the sights to white 3-dot to gain a little accuracy over the field goal sights that came on it. Some day I might get another 29 but for now Im happy.
 
If your going to carry concealed at all. The 29 is the way to go. Not that the 20 cant be concealed. :)

I can nit pick my G20 ( Glock ) apart. But if you only own one Glock, a 10mm or .45 Glock are the only ones needed. I only own one Glock. And it's a G20! IMHO the G20 is the King of Glockdome.

The G17 may well be there flagship pistol. But the G20 shows what there platform can do. And do very well with the 10mm.

As for a woods pistol? It's all I need here in Okiehoma. Or 98% of the lower 48. One can buy great ammo or load up there own fantastic ammo. I have seen two mountain lions 10 miles out from the house and fresh tracks for a adult. The wife saw the the last sighting with me. Freaked her out a tad. I have also seen black bear track. Not to mention hogs. They are about to run a muck here.

I will be taking the G20 Deer Hunting this year. Looks like I will be using a rather hot 200gn XTP load. Early testing looks very good. :) I will be taking a Sharpie to the bling for hunting.

My G20. Ready for the woods or formal dress open carry. And anything I ask of it in between.

g2011.jpg
g202.jpg

Anybody that shoots 10mm needs a Glock 10mm period! I don't care about what one thinks of Glock over all. Heck,,, there not my pistol of choice over all. I own two M&P's and a Sigma. But Glock has never wavered concerning 10mm. And in my book it's worth the $$$$$ to purchase and feed!
 
I was just about ready to head to the gun store today and pick up a 29, but I then started reading about Glocks track record with handloads. I've known for a while that you can't run lead through the stock barrel, but since I shoot FMJ, I assumed it was a non issue. I know they have a less-supported chamber than some firearms, and both 10mm and 40S&W are high pressure rounds.

IF:
-I the hot loads I shoot are factory ammo in the stock barrel, and
-My 10mm reloads through the stock barrel are loaded down a little and using FMJs, and
-Any 40S&W ammo is again, loaded down a little, and shot through one of the conversion barrels on the market;

I should be AOK, right?

Chris "the Kayak-Man" Johnson
 
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