Problems with failures to feed with Underwood Ammo, Gen 4 Glock 20

[DAVIDF]

Yes, PBR Supreme Velocity & Underwood rounds bounce all around in the indoor gun range I use. But, what Hackathorn says makes sense as I have had better results with lighter springs rather than heavy. The frame flex probably doesn't slow the rearward movement of the slide as significantly, but as the slide starts to move forward the front of the frame has flexed upward toward the guide rod & slide creating more friction. My guess anyways.

Brassfetcher has a video demonstrating variations in slide velocity due to how many rounds loaded in a magazine of a Glock 19.

http://www.youtube.com/watch?v=7Fr5ccyriJI

[445 supermag]

David I have to hand it to you in that you have done more than most to get it running.  It may be time like you said to move on to a glock 20 gen 3 or ??


I wish XDM came in 10mm as I would be on it like ... well you know..

Best of luck David.


Brian

[DAVIDF]

Brian,

Thanks, all of you have been very helpful. I'll probably be making up my mind Sunday. Giving one of our Glocks to my daughter, her choice. Then replace that one and or trade this one.

[DAVIDF]

I just looked back to the date of the first post on this thread, it has been almost 3 months. It has been a good learning experience.

[445 supermag]

David just keep up posted on what you end up doing.

Best of luck

Brian

[4949shooter]

There was a member over on Glocktalk who had trouble with a 30SF model (.45 ACP). Glock eventually ended up giving him a brand new gun, a 21SF which is the full size .45.

It might be worth a try.

[pacapcop]

Yeah I gotta hand it to ya on getting it up and running. No doubt a learning experience and the importance of warranties and how much they will cover. Case in point, when I bought my Witness Compact
at Gander Mt, I paid what I would of paid anywhere on market. They simply don't sell much of them. However, they have their lifetime warranty along with EAA's warranty. I go in, drop it off. If problem persists,2 warranties are in play. Good luck on that Gen 3, great pistol. I simply went with the Wolff steel guide rod and various Wolff springs and it eats it all.

[DAVIDF]

My wife & I are going to the range Friday morning. I want her to do some more shooting with it before I make any final decisions. One of my considerations with any firearms purchases is that it is something she can be comfortable using also. We've been narrowing our arsenal down to certain platforms that both of us like and are proficient with. Glocks for pistols & AR platforms for rifles. She's been fine with the 20 before, but since we've had issues with it we'll both decide together whether we're keeping a 20 or trading for another 17 or 19.

We will probably be keeping it and sending it back to Glock again. I'll be asking them that if it is replaced to please replace it with a Gen 3. MRGUNSNGEAR on youtube sent a Gen 4 19 back to them 3 times and they finally replaced it with a new gun.

pacapcop, yes I like the Wolff guide rods and non-captured springs. If I do end up with a Gen 3 I'll be purchasing some.

[DAVIDF]

My wife & I went to the range this morning. Good news & bad! Good news is that she loves it & we are keeping it as is. She doesn't like firing the heaviest loads like the 200 gr Underwoods. The gun functions with everything but the very heaviest. It was working with 180 gr TMJ from Underwood before I sent it back to Glock with the new magazines they sent me. I have not tried those particular loads since they sent it back.

The bad news is that she shoots it better than anything else so I have lost my Glock 20 :'( It is now her EDC gun. I'm stuck with the 17 & 26. I love both of them anyways!

I have a Rachis RSA if anyone has a Gen 4 Glock 20 (or 21). It is designed for Gen 4's only.  It is the lighter carry model.  It is not working in our 20 except with lighter loads. I would be happy to send it to someone free of charge as long as you will evaluate it & let us know how it works.

[REDLINE]

All in all, I'm glad to hear some kinks are gone and you both now consider the G20 a keeper.

BTW, does your wife have large hands?  Does she use the G20 w/o any grip inserts?  I ask because of the countless minions I've heard complain about G20 (and G21 of course) grip size being too big in their opinion.

[DAVIDF]

She has large hands & uses it with the large grip inserts. The reach to the trigger is perfect. It fits her much better than the 17 with the large grip inserts. I prefer the large grip inserts as well. All of the other Glocks are really too small for us.

[REDLINE]

Thanks for the feedback.  My G20 is a Gen3, so I don't have the ability to change grip circumference and feel.  In most glove sizes I wear a regular large size which depending on the glove, range from fitting perfectly to being a hair oversized but still perfectly acceptable.  And for me the Gen3 G20 has always felt good in general grip and comfort.

[Intercooler]

David,

         Any thoughts on getting a Witness 10mm?

[Ezveedub]

I have to try some of this ammo in my G20 Gen4 to see if it fails also.

[DAVIDF]

Intercooler,

No, trying to keep handgun platforms the same so that everything is as simple as possible & as many parts interchangeable as well. But, maybe a Gen 3 is in my future? Not  immediately but eventually.