What's going on here?

[Bobson]

http://www.youtube.com/watch?v=g-phiIwSbxw

Description:

Basically this guy has been reloading xx number of years, and recently switched from SIG to Glock. He's had a few FTF issues from time to time with reloads, and figured out that the rim on some reloads has somehow expanded, preventing the rounds to feed in the Glock.

Is this a Glock-related issue? I know the .40 S&W chambered Glocks have (or had) some issues with not fully supported chambers, resulting in "Glocked brass."

Is this just another type of Glocked brass? Or is this unrelated to the Glock, and he just now realized something that's actually been happening all along?

Are there any issues with reloading 9mm for Glocks, the way there may be issues reloading .40 S&W for Glocks?

ETA: If this has been discussed before, I apologize. Wasn't sure what to search for to check.

 

[243winxb]

Auto pistol fail to feed

Great Video, very true. Not common but happened to me in 45 acp. Ammo ok in S&W 645 with hot loads. Same brass with lite loads in Colt Gold Cup would not feed. Rim grew in diameter & Colt has a much tigher bolt face. Filed rim to correct SAAMI diameter and problem was solved. http://www.thehighroad.org/showpost.php?p=6590467&postcount=19 Photo at link.

 

[gamestalker]

I run into this from time to time. But I haven't been able to isolate the firearm that's causing it, though it could be the warm Longshot or Blue Dot loads at play. I haven't had it cause FTF's or any other firearm function failure, I catch it while resizing it, as in when it won't slide into the shell holder, or does so with difficulty, it gets culled.

GS

 

[fguffey]

In the video, a reloader that does not have a 308 W 7.62 NATO datum? As a round hole of .400", then there is the wedge gage, a gage no one has ever seen.

I have almost quit talking about using a shell holder as a tool for something other than holding the case. A builder/reloader was tying to form cases for his wildcat rifles, he ask for help then ask me to bring the other #4 RCBS shell holder. I added a gasket cutting ball peen hammer to use on magnum belted cases that had been fired with heavy loads. A reloader could go through the different shell holders by different manufacturers to determine the difference. I have shell holders that fit a case that has not been abused but will not allow a case to fit that has an upset case head. Of the 250 cases he wanted to form 40 had been hammered.

F. Guffey

 

[luzyfuerza]

No way the case rim expanded during firing. Almost certainly a variation in original manufacturing. I have seen burrs left by extractors that can cause this issue, though.

I drop every pistol cartridge I load through a SAMI-minimum case gauge. Rounds that pass this test will chamber in every in-spec gun. I might file off a burr if the case has one. The rejects get fired in a gun with generous dimensions and left on the ground at a public range...

 

[LiveLife]

The rejects get fired in a gun with generous dimensions and left on the ground at a public range

I mark my rejects or questionable cases with an "X" at the bottom of the cases using a sharpie so as to warn myself or others to toss/recycle the cases while sorting brass. I figure that's the "High Road" thing to do to warn other "unsuspecting" reloaders.

Some match shooters will use 9mm Major loads that push 124 gr bullets at 1450+ fps. They will not reload these cases and just leave them on the range floor. Of course, these cases are often not marked. These cases will eventually get picked up by the range or other shooters to be reloaded. I reload mixed range brass and while sorting by caliber, I will look for cases with noticeable extractor marks or overly bulged cases to check/cull. Not sure if this is the case the guy in the video is experiencing but the cases must have been hammered quite hard to expand the rim enough to not slide inside a Glock extractor (guy in the video states the case seems to have been reloaded several times).

What I noticed from the video is that the case shows sharp resizing die mark towards the case base. When I notice significantly higher resistance while resizing a case, I will check if I can see daylight between the bottom of the die and the top of the shell plate. If I can, I will barrel drop test the resized case in the tightest chamber I have and toss the case if it fails. I guess now I could do a quick check of the rim diameter with the calipers too.

 

[243winxb]

No way the case rim expanded during firing. Almost certainly a variation in original manufacturing.

It happens with many firings. Brass used over and over again. NOT a factory defect. My brass headstamp WRA 69

 

[FROGO207]

I have some 38 SPL that has been used so much the head stamp is peened off and there are literally no markings. Sometimes these will not fit into the shell holder so I recycle them at that point. So it can happen to auto pistol brass I am sure but I usually loose mine before this has happened at least so far.