Shrek1 Posted December 11, 2018 Share Posted December 11, 2018 I reload with a dillon 650, 135 gr bluebullet with tite group. Recently, I have been having issues what gun not going into battery after being fired and will be stuck just barely out of battery. I am shooting a Glock 34 gen 5, had the same issue with the stock barrel. I am also case gauging every round.... Any thoughts on what the issue may be? Link to comment Share on other sites More sharing options...
Furrly Posted December 11, 2018 Share Posted December 11, 2018 Have you done the plunk test with your barrel.. What's your OAL.. Link to comment Share on other sites More sharing options...
Shrek1 Posted December 11, 2018 Author Share Posted December 11, 2018 Not sure what the plunk test is. Link to comment Share on other sites More sharing options...
Sarge Posted December 11, 2018 Share Posted December 11, 2018 (edited) 10 minutes ago, Shrek1 said: Not sure what the plunk test is. Take barrel out of gun and drop a round in chamber Should fall all the way in, spin freely and fall right out when tipped over. If it doesn't shorten just a smidge and repeat until it passes test. Also, check for enough crimp to remove all bell in case mouth while you are at it. Edited December 11, 2018 by Sarge Link to comment Share on other sites More sharing options...
Furrly Posted December 11, 2018 Share Posted December 11, 2018 Drop a round in the barrel, spin it with your hands then turn it up side down, it should drop out easily Link to comment Share on other sites More sharing options...
36873687 Posted December 11, 2018 Share Posted December 11, 2018 After plunk test. Recoil spring or magazine spring were I’d check next Link to comment Share on other sites More sharing options...
L3324temp Posted December 11, 2018 Share Posted December 11, 2018 What is your OAL? Many of my guns have issues with coated bullets and normal to long OALs. They do not have issues with jacketed or plated. I generally load much shorter using coated billets.Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
floater Posted December 11, 2018 Share Posted December 11, 2018 Gen 5's need to be loaded short with most coated profiles, I load blue bullets 135tc's at 1.120 for a gen 5 34 and gen5 17, any round nose and that drops OAL a lot. Link to comment Share on other sites More sharing options...
floater Posted December 11, 2018 Share Posted December 11, 2018 Also make sure your resize die hasn't work it's self out, I've had that happen before, not getting sized all the way to the base. Link to comment Share on other sites More sharing options...
M1A4ME Posted December 11, 2018 Share Posted December 11, 2018 short plunk test video https://www.youtube.com/watch?v=s80P2j02YnM Link to comment Share on other sites More sharing options...
lgh Posted December 11, 2018 Share Posted December 11, 2018 If it's an intermittent problem, check the rounds that did not go into battery. That should give you the answer. Be sure to check for a high primer. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted December 11, 2018 Share Posted December 11, 2018 13 hours ago, Shrek1 said: Not sure what the plunk test is. Aha, I think we found your problem. If your rounds Plunk and spin in your gun's chamber, they will feed properly Link to comment Share on other sites More sharing options...
superdude Posted December 11, 2018 Share Posted December 11, 2018 More detail on the plunk test: http://www.shootingtimes.com/editorial/reloading-tips-the-plunk-test/99389 Link to comment Share on other sites More sharing options...
IDescribe Posted December 12, 2018 Share Posted December 12, 2018 Yeah, Shrek. How did you determine the OAL to use? Link to comment Share on other sites More sharing options...
Shrek1 Posted December 23, 2018 Author Share Posted December 23, 2018 Ok plunk test completed. No issues....Oal 1.123-7 five tested. Titegroup 3.1 gnAlso look at my slide and found some obvious carbon build up around the ejector on the slide. Thinking that may be the issue. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Furrly Posted December 23, 2018 Share Posted December 23, 2018 You might be under powered with your load It's not cycling the slide all the way back. I would try 3.4 to 3.5 gr of TG.. Carbon build is usually not the issue.. No limp wrist either!! Link to comment Share on other sites More sharing options...
IDescribe Posted December 23, 2018 Share Posted December 23, 2018 The extractor slides into the extractor groove when it picks up the round from the magazine, and the extractor moves forward and backward as necessary during feeding to allow the cartridge to turn this and that way as it deflects off the ramp and the roof of the chamber and so forth as it slides home. Gunk gumming up the extractor can absolutely cause failures to feed because it restricts the cartridges ability to turn as it needs to. Link to comment Share on other sites More sharing options...
Shrek1 Posted December 23, 2018 Author Share Posted December 23, 2018 After some more testing today, i cleaned my glock very well last night, factory ammo runs with no issues. Reloads were the issue, not seating properly. New loads working fine, when in doubt i drop one in a barrel. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
rustybayonet Posted December 24, 2018 Share Posted December 24, 2018 Sounds like an ojive issue. Your bullet profile might not have enough room in your chamber. The punk and spin with tell you if it is the problem. I was working on a WWII Browning hi-power. When using my rounds that work great in the M&P9, the same problem accured. Some people call it a short chamber. I had to shorten the Col to get it to chamber, then I dropped the powder charge and worked it up for the new col. Link to comment Share on other sites More sharing options...
DIYguy Posted January 22, 2019 Share Posted January 22, 2019 I was about to post my issue and ran into this topic. Very similar issue. Finally received my Custom CZ Shadow 2 from CZ Custom and went to the range to zero the gun. Ran about (150) rounds of Fed A&E 147g FP through the gun just fine. Loaded up a mag with the my equivalent loads that I've been shooting just fine through my M&P Pro. Rack the slide, pull the trigger, bang and done. Slide doesn't go into full battery and jammed. Drop magazine, palm of hand ram closed and fire. Replace mag, repeat and same issue. Back home did the plunk test and sure enough, round would not fully seat. Loaded thousands of these rounds on my Hornady LnL and then gauge each round with the Hornady case gauge. Interesting thing, I went through my box of loads and dropped them into the Dillon case gauge and they dropped in just fine and I could dump them out of the gauge. Using the Hornady gauge, the round would drop all the way in and seat flush in one direction but if i turn the round ninety degrees it would drop all the way flush. Need had a single FTF, FTL in the M&P but the same rounds will not load in the CZ. Plunked both guns which means the CZ as substantially tighter tolerances. Link to comment Share on other sites More sharing options...
BallisticianX Posted January 22, 2019 Share Posted January 22, 2019 For some reason the trend is for Euro manufacturers (FN for Hi-Power barrels as an exception) to run shallower throats in handgun vs our american counterparts. I had a tanfo 9mm that had this issue. my usual COL's for M&P, Hi-Power, or 1911 9's would be too long. Link to comment Share on other sites More sharing options...
DIYguy Posted January 22, 2019 Share Posted January 22, 2019 Time to start playing with the micrometer and do some comparisons. I was slightly suspicious that the cases weren't getting resized all the way for the last 1/16" or so at the head. I sort all my brass by head stamp and so far have only been loading Federal brass so all my loads are the same case. I also only load 147g FP bullets so COAL should be shorter than the RPs On the plus side, the LnL is boxed up and a loaded Dillon XL 650 is taking it's place. Working on setting up all the dies now so get to start from scratch. Link to comment Share on other sites More sharing options...
4n2t0 Posted January 22, 2019 Share Posted January 22, 2019 (edited) 2 hours ago, DIYguy said: Time to start playing with the micrometer and do some comparisons. I was slightly suspicious that the cases weren't getting resized all the way for the last 1/16" or so at the head. I sort all my brass by head stamp and so far have only been loading Federal brass so all my loads are the same case. I also only load 147g FP bullets so COAL should be shorter than the RPs On the plus side, the LnL is boxed up and a loaded Dillon XL 650 is taking it's place. Working on setting up all the dies now so get to start from scratch. Try this: LINK With my bullet of choice I need to load to 1.095 for my CZ Shadow. P.S. Make sure your sizing die kisses the shellplate. Edited January 22, 2019 by 4n2t0 Link to comment Share on other sites More sharing options...
IDescribe Posted January 23, 2019 Share Posted January 23, 2019 6 hours ago, DIYguy said: Plunked both guns which means the CZ as substantially tighter tolerances. No, the OAL is simply too long for that chamber with that bullet. We have seen this a bazillion times, most often with CZ, but also a few others. BallisticianX touched on it. There is a maximum OAL that any bullet can be loaded to in a particular chamber before it actually touches the rifling when fully chambered. If you load longer than that, your bullet will engage the rifling, and if it's too far past that point, it will hold the gun out of battery. That is what you are experiencing. In many Western and Eastern European countries, it's illegal to have any bullet type other than RN. FMJ-RN will seat exceedingly long without engaging the rifling -- longer, in fact, than the magazine will allow. Several gun manufacturers in Europe do not account for bullet types other than FMJ-RN, and their throats are a bit shorter than guns built in the U.S., where an unlimited variety of bullet profiles is permitted. This is NOT a problem. It simply means you need to load cartridges a few hundredths of an inch shorter for a CZ (or some Tanfos, some Walthers, and so on and so on) than you would for most pistols. Perfectly normal. Just determine the max OAL for that pistol with whatever bullets you load, and load shorter than that. There are boatloads of threads that discuss how to determine max OAL. I wouldn't be surprised if one was linked to previously in this thread. Link to comment Share on other sites More sharing options...
DIYguy Posted January 23, 2019 Share Posted January 23, 2019 Digital micrometer on board.... Fed AE LnL reloads Dillon XL650 COL 1.065 1.089 * 1.070 Dia @ head .3885 .3885 .389 Crimp dia .378 .378 .379 I think I did the plunk test for CBTO when setting up loads for the M&P @ 1.089 These loads run all day in the M&P, jamb up the CZ. I pulled some test loads (no primer, no powder) from the Dillon 650 and plunked the barrel for the CZ. The Federal AE @ 1.065 load perfect, the LnL @ 1.089 not even close and the Dillon loads @ 1.070 drop high and stick in the plunk test. WOW....that's some touchy settings for chamber length for the CZ. .005 is the difference between seating and not? Link to comment Share on other sites More sharing options...
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