Glock gen 5 short throated Barrel

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TheProf

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Have you guys heard anything about the Gen 5 new Barrel having a shorter throat length so that 147 grain HST cannot feed properly?

some are reporting feeding issues with regards to the 147 grain HST that the overall length of the cartridge is too long to feed properly with the new Barrel is this true? That depending on the lot of ammo, some 147 grain is good to go...others not so.

The main advantage of Glocks that I admire so much is there reliability regardless of ammo. Is this no longer true with a Gen 5 Glock 19 Barrel?

Some have suggested that the "plunk" test is necessary when using 147 grain ammo in order to ensure reliability.
 
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My wife got a g5 17.
I had to shorten up the OAL on 147 grain bullets to accommodate her gun. I had been seating 1.15 oal in all my earlier Glocks. I now seat to 1.13 for everything.
Plunk testing will give you your answer.
 
Had not heard of 147gr bullets not chambering. HOWEVER, I have witnessed dummy rounds that would chamber in other Gen glocks not chambering in a Gen 5--it does seem to have a different (shorter?) chamber.
 
My 19X runs perfect with HST in my testing, 147 grain.

However, my flat nose 147 grain RMR reloads loaded to 1.13 do occasionally choke it. I have debated reducing OAL but it's very infrequent (maybe 1 or 2 in 100), it's just range ammo, and is useful for malf drills.

The same ammo/load gives my 17.4 no issue.
 
Will using only 124 grain ensure that I can avoid this rare problem? I know that there's no guarantees . But I want to reduce possibilities of failure if I can.
 
I did the plunk test on a box of Winchester 147 gr. JHP last night as a result of this thread and it passes. That's the only 147 gr. load that I have currently (I mostly shoot 115 and 124 grain loads) and there's no way of telling if a load with a slightly greater overall length would have failed.

Also checked several 115 and 124 grain JHP and one 115 gr. FMJ, passed.

Checked my calipers and they're dead.

Any chance Glock could have quietly taken care of this issue?
 
Some reloads that pass on my gen 3 dont pass on the gen 5 so it would appear to be shorter.
 
In order to alleviate the short throat problem can I use a Gen 4 (G19) barrel in a Gen 5 gun (G19)? I noticed that there is a slight becel in the hood of the g19 barrel. Is this an issue when dealing with compatibility?
 
No.

The Gen 4 barrel is not compatible with the Gen 5 locking block.


TheProf said:
In order to alleviate the short throat problem can I use a Gen 4 (G19) barrel in a Gen 5 gun (G19)? I noticed that there is a slight becel in the hood of the g19 barrel. Is this an issue when dealing with compatibility?
Click to expand...
 
If I primarily use 124 grain ammo will do this eliminate any potential problems with the short barrel throat?
 
I was told the 19X and the G45 were designed for 115 grain bullet cartridges. That is mostly what I shoot. I have fired quite a few 124 grain bullet cartridges with no problems at all but have not shot 147 grain ammo and honestly, have no intentions of doing so.
 
Pat Riot said:
I was told the 19X and the G45 were designed for 115 grain bullet cartridges. That is mostly what I shoot. I have fired quite a few 124 grain bullet cartridges with no problems at all but have not shot 147 grain ammo and honestly, have no intentions of doing so.
Click to expand...

Given that both were basically designed for law enforcement/the military & NATO uses 124 grain, this is assuredly incorrect.
 
Question: why couldn’t you have a gunsmith ream the chamber? I would think that would be a quick inexpensive fix.
 
Mizar said:
It's not that easy to simply ream a nitrocarburized barrel because of the high hardness (about 64 HRC) of the surface layer.
Click to expand...

Agreed.

I've got a CZ75 Accu-Shadow" Lite from the custom shop with a short throat and have issues with several 147grn profiles. Since 147 is my preferred match load I've been looking to find a smith to ream the throat. No joy........I've talked to several and the new barrels are too hard on reamers. Luckily I've found a couple profiles that work, or I was going to end up buying a reamer to have it done.
 
So...if I primarily use 124 grain ... would bthus solve the long OAL issue?
 
I have used Winchester white box 147gr HP, Remington UMC 147gr FMJ, Federal HST 147gr, and MBC 147gr handloads (which I’ve loaded to 1.110 inches for years) in my G19 Gen5 without issue. In fact, if I had not read about it here – I never would’ve known there was an issue.
 
TheProf said:
So...if I primarily use 124 grain ... would bthus solve the long OAL issue?
Click to expand...

Should, and it's only certain ogive profiles that cause an issue.

For instance I shoot a 147 plated from Extreme bullets and do not have an issue. I bought 2000 147 FMJs from RMR and could not make them work in either my CZ75 or 2 Walther PPQs and a PPS. When I seated the FMJs deep enough to get a "plunk" in the barrels, about 10% of my loaded rounds developed a bulge that would not allow chambering. When I seated them long enough to avoid the bulge, I can only get a good "plunk" with a S&W M&P and my HKs. That bullet profile is too long for my CZ and Walther's.
 
falmike said:
No.

The Gen 4 barrel is not compatible with the Gen 5 locking block.
Click to expand...
Incorrect. The G17 Gen 4 and Gen 5 barrels are not compatible, but the G19s are. I installed a Stormlake comp barrel that I had laying around for my Gen 4 G19 into my Gen 5 G19 and it fits perfectly.

And yes, the throat is different in the Gen 5 barrels and it is causing me great consternation. The new barrel depends heavily on the ogive and bullet profile as to whether or not bullets will work. Kind of the opposite of what Glocks are known for.

I suspect future Gen 5s will have the issue quietly addressed as Glock rarely admits when they are wrong.
 
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