GlockTalk.com
Home Forums Classifieds Blogs Today's Posts Search Social Groups



  
SIGN-UP
Notices

Glock Talk
Welcome To The Glock Talk Forums.
Reply
 
Thread Tools Display Modes
Old 03-07-2013, 19:08   #1
G20 SF
Registered User
 
Join Date: Mar 2013
Posts: 10
Problems with Underwood ammo...

Shot through 7 mags of ammo last weekend mostly target stuff PPU, Blazer etc, but I loaded one mag up with the hot stuff - UW 180 grain.

The first couple of shots went off without a hitch, but I had trouble with 3 or 4 out of the 15 rounds feeding into the chamber, thus requiring me to push the slide forward to feed the next round. I had no issues with the other 6 clips of ammo, which leads me to believe the issue was ammo related.

I sent Underwood an e-mail and Kevin Underwood was quick to reply asking that I call him, which I did but still waiting on that call back.

Being a new G20 owner I was curious if anyone else experienced a similar issue when shooting Underwood.
G20 SF is offline   Reply With Quote
Old 03-07-2013, 19:18   #2
Scrappy
Senior Member
 
Scrappy's Avatar
 
Join Date: Mar 2001
Location: PA
Posts: 2,339
Someone here just blew up their Glock with that stuff!!

http://www.glocktalk.com/forums/show...ood+ammo+issue
__________________
Glock - N - Load
If this is a free country why does
it cost so much to live?

Last edited by Scrappy; 03-07-2013 at 19:24..
Scrappy is offline   Reply With Quote
Old 03-07-2013, 19:50   #3
copo9560
Senior Member
 
Join Date: Feb 2012
Posts: 337
I have had no issues with any ammo through my G20 including many of Underwoods 180 grain. Shoots 40sw as well.

I had a similar experience with my G23 once - slide was dry. Couple drops of oil took care of the issue.
copo9560 is offline   Reply With Quote
Old 03-07-2013, 19:56   #4
chemboy
Senior Member
 
chemboy's Avatar
 
Join Date: Jun 2004
Location: Utumno
Posts: 1,136
The only trouble I have had with Underwood ammo is them not having enough in stock when I want to order.
Have put around 1500 rds of his 10mm stuff through my 20 and 29 with no troubles, at least so far.
__________________
"Say hello to my little friend!!!"-Al Pacino in 'Scarface.'


Current Glocks: 19,26,20SF,29SF, 21Gen4,23Gen4,32Gen4
AA 22lr conversion kit for G20.
chemboy is offline   Reply With Quote
Old 03-07-2013, 19:57   #5
G20 SF
Registered User
 
Join Date: Mar 2013
Posts: 10
Quote:
Originally Posted by Scrappy View Post
Someone here just blew up their Glock with that stuff!!

http://www.glocktalk.com/forums/show...ood+ammo+issue

Caused by a bad round?!
G20 SF is offline   Reply With Quote
Old 03-07-2013, 19:59   #6
G20 SF
Registered User
 
Join Date: Mar 2013
Posts: 10
Quote:
Originally Posted by copo9560 View Post
I have had no issues with any ammo through my G20 including many of Underwoods 180 grain. Shoots 40sw as well.

I had a similar experience with my G23 once - slide was dry. Couple drops of oil took care of the issue.
Good point, I'll try and grease the slide.
G20 SF is offline   Reply With Quote
Old 03-07-2013, 20:00   #7
G20 SF
Registered User
 
Join Date: Mar 2013
Posts: 10
Quote:
Originally Posted by chemboy View Post
The only trouble I have had with Underwood ammo is them not having enough in stock when I want to order.
Have put around 1500 rds of his 10mm stuff through my 20 and 29 with no troubles, at least so far.
Glad to hear, because I enjoyed shooting it. I will try a little bit of oil as mentioned earlier and see if that helps. Thx
G20 SF is offline   Reply With Quote
Old 03-07-2013, 20:35   #8
wlkjr
Senior Member
 
Join Date: Apr 2012
Posts: 657
I have some Underwood ammo but haven't shot it yet. I have less than a hundred rounds through my G20SF, and probably about the same on the 23. I'll make special note when I shoot the Underwoods.
wlkjr is offline   Reply With Quote
Old 03-08-2013, 13:03   #9
SCmasterblaster
Senior Member
 
Join Date: Sep 1999
Location: Hartford, Vermont
Posts: 15,846
Sorry to hear about your UW ammo trouble.
__________________
Gun Ownership Offers Freedom in Many Dimensions
SCmasterblaster is offline   Reply With Quote
Old 03-08-2013, 18:48   #10
Jade Falcon
Go Blazers!
 
Jade Falcon's Avatar
 
Join Date: Aug 2004
Location: Vancouver, WA.
Posts: 3,756
I've got a box of 50 rounds of .357 Magnum 125gr. GDHP's from Underwood, and I can't wait to shoot them from my 4" Ruger GP100. Hopefully, they won't give me any problems! It looks like Kevin Underwood is a good guy, with a good business.
__________________
AK-47 WASR 10/63, Puma M92 16" .454 Casull, Glock 22 .40 S&W, Marlin M60W .22 LR, Ruger GP100 4" .357 Magnum, Winchester M1400 12 ga.
Jade Falcon is offline   Reply With Quote
Old 03-08-2013, 21:45   #11
G20 SF
Registered User
 
Join Date: Mar 2013
Posts: 10
Quote:
Originally Posted by copo9560 View Post
I have had no issues with any ammo through my G20 including many of Underwoods 180 grain. Shoots 40sw as well.

I had a similar experience with my G23 once - slide was dry. Couple drops of oil took care of the issue.
So I got to thinking,,, why would just the Underwood give me trouble with feeding if lubricity of the slide was an issue? I shot 5 clips of the regular stuff before without issue and another clip of the regular stuff after the UW clip and did not have a problem. The only time my experienced troubles with feeding the round was when it was loaded with UW.
G20 SF is offline   Reply With Quote
Old 03-08-2013, 21:51   #12
chemboy
Senior Member
 
chemboy's Avatar
 
Join Date: Jun 2004
Location: Utumno
Posts: 1,136
Quote:
Originally Posted by Jade Falcon View Post
I've got a box of 50 rounds of .357 Magnum 125gr. GDHP's from Underwood, and I can't wait to shoot them from my 4" Ruger GP100. Hopefully, they won't give me any problems! It looks like Kevin Underwood is a good guy, with a good business.
I have had very good luck with Kevin's ammo. in 9mm, 10mm, 357 SIG, and 45 Auto.
He runs a good business from what I can see. Always returns answers to my emails, gets orders shipped fast, and delivery is pretty darn fast, considering I live on the other side of the continent.
__________________
"Say hello to my little friend!!!"-Al Pacino in 'Scarface.'


Current Glocks: 19,26,20SF,29SF, 21Gen4,23Gen4,32Gen4
AA 22lr conversion kit for G20.

Last edited by chemboy; 03-08-2013 at 21:52..
chemboy is offline   Reply With Quote
Old 03-09-2013, 06:58   #13
Adamz04
Senior Member
 
Adamz04's Avatar
 
Join Date: Mar 2012
Location: Indiana
Posts: 575
I had problems with their 9mm 124+p+ gold dots not ejecting in my g26. Every other round would give me a fte. Needless to say I don't use it
__________________
Love god, love people, work hard
Adamz04 is offline   Reply With Quote
Old 03-09-2013, 10:33   #14
Tiro Fijo
Senior Member
 
Join Date: May 2011
Posts: 5,083
Quote:
Originally Posted by Adamz04 View Post
I had problems with their 9mm 124+p+ gold dots not ejecting in my g26. Every other round would give me a fte. Needless to say I don't use it

That's because the slide is reciprocating very rapidly with high pressure rounds and it helps to have Wolff 10% Xtra mag springs.
Tiro Fijo is online now   Reply With Quote
Old 03-11-2013, 14:59   #15
intecooler
Senior Member
 
intecooler's Avatar
 
Join Date: Nov 2012
Posts: 512
It's hard to tell. Gun setup is EXTREMELY important when you load up a mag with the top of the heap 10mm out there. I think Kevin needs to includes some instruction sheets in every box.
intecooler is offline   Reply With Quote
Old 03-11-2013, 15:37   #16
SCmasterblaster
Senior Member
 
Join Date: Sep 1999
Location: Hartford, Vermont
Posts: 15,846
I don't recall CorBon having such chronic problems . . . . .
__________________
Gun Ownership Offers Freedom in Many Dimensions
SCmasterblaster is offline   Reply With Quote
Old 03-11-2013, 18:00   #17
intecooler
Senior Member
 
intecooler's Avatar
 
Join Date: Nov 2012
Posts: 512
You are a Cor-Bon fanatic yes? Cor-Bon is down here ___ and Underwood up here ----. It's like Apples to Oranges in performance. I have been sending Chopinbloc Cor-Bon for gel testing and have yet to see anything that moves me.

Enjoy some recent tear-down info:

http://10mm-firearms.com/factory-10m...bon-135gr-pow/

Well none have met spec yet. Two 135 types and different specs. Just nothing justifies the cost IMO.
intecooler is offline   Reply With Quote
Old 03-11-2013, 18:05   #18
Tiro Fijo
Senior Member
 
Join Date: May 2011
Posts: 5,083
Quote:
Originally Posted by intecooler View Post
You are a Cor-Bon fanatic yes? Cor-Bon is down here ___ and Underwood up here ----. It's like Apples to Oranges in performance. I have been sending Chopinbloc Cor-Bon for gel testing and have yet to see anything that moves me.

Enjoy some recent tear-down info:

http://10mm-firearms.com/factory-10m...bon-135gr-pow/

Well none have met spec yet. Two 135 types and different specs. Just nothing justifies the cost IMO.

Are those knuckleheads in the link you provided too stupid to know that Corbon uses special blend powders and not off the shelf stuff?
Tiro Fijo is online now   Reply With Quote
Old 03-11-2013, 18:13   #19
intecooler
Senior Member
 
intecooler's Avatar
 
Join Date: Nov 2012
Posts: 512
Where data or comparisons didn't exist for what was found it was blanked other than charge weight. The main Knucklehead has been around doing the reload thing for a long time.
intecooler is offline   Reply With Quote
Old 03-11-2013, 18:17   #20
Kingarthurhk
Isaiah 53:4-9
 
Kingarthurhk's Avatar
 
Join Date: Sep 2010
Location: Texas
Posts: 7,575
I have had a lot of FTF's, FTE's with the 10mm. It was worth a try. But, I was disapointed. Now, I am going to end up trying Buffalo Bore or Double Tap, and see how that works out.
__________________
Glock 17, 19, 20SF, 21C, 22, 26, 27, Glock E-Tool, Glock knife
Quod ego haereticus appellari sequere Jesum.
Kingarthurhk is offline   Reply With Quote
Old 03-11-2013, 18:21   #21
intecooler
Senior Member
 
intecooler's Avatar
 
Join Date: Nov 2012
Posts: 512
Buffalo Bore doesn't have much of a selection. An all copper that doesn't hit claims, a 200 TMJ, 220 hardcast and a 180gr with a Montana Gold.
DoubleTap has a few but...
intecooler is offline   Reply With Quote
Old 03-11-2013, 18:40   #22
intecooler
Senior Member
 
intecooler's Avatar
 
Join Date: Nov 2012
Posts: 512
Quote:
Originally Posted by Tiro Fijo View Post
Are those knuckleheads in the link you provided too stupid to know that Corbon uses special blend powders and not off the shelf stuff?
Little info on what blend means:

This is a popular misconception and only true to a limited degree. Commercial grades of most propellants commonly available to the public are blends of two or more production batches of the powder. These batches are blended by the manufacturer to yield specific ballistic performance within a fairly narrow range. This allows the use of any lot of the propellant to be safely used with commercially available loading data. The majority of "Non-canister powders" are nothing more than the original production lot, without blending usually, which is useable by the factories which have a ballistic lab. They determine the performance level (velocity) they want and, if the lot of powder they are using can each the target velocity without exceeding their predetermined pressure limit they will proceed to load the lot of powder.

All "non-canister" means is the burning rate of the lot does not qualify it to be sold to the public packaged in "cannisters". It wouldn't necessarily produce higher pressures, but could just as well give sub-standard performance with "book" loads.

There are exceptions, but the vast majority of powder loaded by the factories is very similar, but not identical to, the same powder sold to reloaders. One of the major exceptions to this was/is a powder kwnon to the trade as "Bullseye 84". This was loaded by the factories (all of them in the U.S.) for many years in the modrate to high intensity cartridges for semi-automatic pistols. Examples are 9mm, 40 S&W, and everything in the same range. Several years ago Alliant decided to standardize this propellant as a canister grade powder and they put it on the market. It has become very popular with handloaders for the same class of cartridges. It is called "Power Pistol". It is, no doubt, still sold to the ammuniion manufacturers as the non-canister grade known as Bullseye 84. I would expect many of the recent introductions by Alliant have a similar history.

To sum it up, there is usually nothing special about propellants loaded by the factories. What is "special" is the ballistic testing equipment that allows them to load to specific parameters with propellant lots which are not sold to the public.

And, yes, contrary to popular myth, a careful, knowledgible, experienced hand loader can usually equal the performance of factory ammunition with similar components. Part of the problem is to know what the actual performance level of the specific load in question is. The vast majority DO NOT give velocity levels anywhere close to to published performance when used in real guns under normal circumstances.
intecooler is offline   Reply With Quote
Old 03-12-2013, 08:15   #23
SCmasterblaster
Senior Member
 
Join Date: Sep 1999
Location: Hartford, Vermont
Posts: 15,846
Quote:
Originally Posted by Tiro Fijo View Post
Are those knuckleheads in the link you provided too stupid to know that Corbon uses special blend powders and not off the shelf stuff?
I know that CorBon uses its own powder and bullets. And they get +p+ velocities using +p pressures.
__________________
Gun Ownership Offers Freedom in Many Dimensions
SCmasterblaster is offline   Reply With Quote
Old 03-14-2013, 11:33   #24
DAVIDF
Senior Member
 
Join Date: Jan 2011
Posts: 137
Quote:
Originally Posted by G20 SF View Post
Shot through 7 mags of ammo last weekend mostly target stuff PPU, Blazer etc, but I loaded one mag up with the hot stuff - UW 180 grain.

The first couple of shots went off without a hitch, but I had trouble with 3 or 4 out of the 15 rounds feeding into the chamber, thus requiring me to push the slide forward to feed the next round. I had no issues with the other 6 clips of ammo, which leads me to believe the issue was ammo related.

I sent Underwood an e-mail and Kevin Underwood was quick to reply asking that I call him, which I did but still waiting on that call back.

Being a new G20 owner I was curious if anyone else experienced a similar issue when shooting Underwood.
Is your G20 a Gen4 or Gen3? I spoke to Kevin about recoil springs for the G20 with his 10mm loads. You may need heavier springs for it to cycle properly. I just bought a Gen4 G20 and I will be trying his loads when they become available. He has not had experience with the Gen4 springs & advised that I try with the stock springs first. If it won't function properly then go with heavier springs.

The Underwood Ammo is loaded hotter than any of the others (based on chronograph results posted on youtube) & that can cause problems with the light stock recoil springs on the G20. It is not an issue with the ammo itself.
DAVIDF is offline   Reply With Quote
Old 03-14-2013, 13:30   #25
gatorboy
Senior Member
 
Join Date: Jul 2001
Posts: 2,923
I had problems with 10mm 165 and 180 TMJ FTFeed in both 20 and 29 with LWD barrels. Shot 155 GD from both no problem.
gatorboy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




All times are GMT -6. The time now is 02:02.



Homepage
FAQ
Forums
Calendar
Advertise
Gallery
GT Wiki
GT Blogs
Social Groups
Classifieds


Users Currently Online: 669
170 Members
499 Guests

Most users ever online: 2,244
Nov 11, 2013 at 11:42