You might want to post this somewhere other than "California Glockers" so that it gets more exposure.

 

Switch ammo first. Is your Glock stock or do you have any modifications?

 

Stock g21... switching to cci primers and win...25 each..see what happens thursday at range. Thank you for the help.

 

Do they fire if you feed them through the gun a second time? If so, the most likely explanation is, you're occasionally failing to fully seat the primers. In that case, the first hit from the striker will make a normal looking dent in the primer and finish seating it.

 

Glock 21 gun..45acp.. stock except for NDZ racker...(happened well before and after racker. ) sometimes they go boom on second feed and other times not. More ofter boom than not 7 to1 or so. I seat primer below case, and if not i remove it, clean pocket a little and then back in again. Same primer. Thought this might be an issue but had it happen, (misfire) 3 times in one clip. Still think the primers. Find out thursdday

 

I'd splurge on some factory loads, too.
My revolvers get the more sensitive Federal primers because some have action jobs with reduced mainsprings. But I would not put up with special primers for a stock gun.

 

How old is the gun? I bought my first 21 in 1999 as a duty gun. It had light strikes infrequently. Glock replaced some internals on it with updated ones. No problems after that. Same with my G30 that I bought at the same time

 

Little over a year old. Still thinkinng primers. Easy fix. Loading up some cci s this week.rande day thursday. Gonna order a firing pin spring.. 5 #oem and 6.5 # heavy duuty. Trying 1 solution at a time...(for now)
Thank you for suggestion
Brad

 

Quote: "I seat primer below case, and if not i remove it, clean pocket a little and then back in again. Same primer. Thought this might be an issue but had it happen, (misfire) 3 times in one clip. Still think the primers. Find out thursdday"

If I read this right, you're removing primers that don't seat right ,cleaning the pockets and then reinstalling the primers that you pushed out with a decapping die??? How about cleaning out all the primer pockets before priming and never reuse live primers that have been installed and removed. The pin will damage the primer, and it's not safe! My 2cents

 

Quote: "I seat primer below case, and if not i remove it, clean pocket a little and then back in again. Same primer. Thought this might be an issue but had it happen, (misfire) 3 times in one clip. Still think the primers. Find out thursdday"

If I read this right, you're removing primers that don't seat right ,cleaning the pockets and then reinstalling the primers that you pushed out with a decapping die??? How about cleaning out all the primer pockets before priming and never reuse live primers that have been installed and removed. The pin will damage the primer, and it's not safe! My 2cents

Took each primer, cleaned pocket with MTK? OR KMT brand name. Miked pocket after cleaning all seemed fine. Yes same primer in and out of case. Wondered if that might be cause.. still wondering. But had 4 rounds in one clip all misfire. 2 in a row...ugh so dont think, (know) i did not instaall uninstall 2 next to each other. The strikes on the misfires are solid, deep strikes. Compared to fired ones, same batch. (Stopped, picked up brass and put in my pocket. Actually scared the crap out of me, had major jam, had to get range guy to get out, i checked barrel and a stuck bullet. SHEZZZ
So primer went off, some powder residue in barrel so what else? Ugh. Using w231 fresh, 200 gr. Jhp, 5.7 grains. Dillon 450, upgraded to new auto powder feeder...so still looking harder at primers. Trying to be patient.....
Thank you for to reply...plan B on primers not fitting, remove and toss in oil can.....

Appreciate you reply,
Brad

 

Probably not the issue you are having and take it for whatever it is worth but, if you are not running stock or stronger than stock striker spring, you should. The single largest issues created for me on the large frame Glocks are problems with weak or weaker than stock striker springs. I go with 6lb in all my large frame Glocks, and it solved a bunch of issue with light strikes.

 

Probably not the issue you are having and take it for whatever it is worth but, if you are not running stock or stronger than stock striker spring, you should. The single largest issues created for me o

I'd splurge on some factory loads, too.
My revolvers get the more sensitive Federal primers because some have action jobs with reduced mainsprings. But I would not put up with special primers for a stock gun.

Gonna use these
n the large frame Glocks are problems with weak or weaker than stock striker springs. I go with 6lb in all my large frame Glocks, and it solved a bunch of issue with light strikes.

Gonna use these primers in my 44 mag. Never ever had a misfire. S&W, mod 29, 8 3/8th barrel.

 

Some do, some dont. 4 or 5 do fire, 1 or 2 wont.

 

Have you taken apart the rounds that don't fire? If so are the primers spent? If you're using new dry powder, and seating the primers correct it's gotta be bad primers. The fact that you had a squib, which is not much fun Yells, "bad primers" I've had bad lots of Win. Remington and CCI. Never a problem with Fed or Fiocci. Are you using brass that uses LPP, I've seen some 45ACP that uses SPP, don't know why. Good luck, be careful. S**t can those primers, hopefully you don't have that many on hand.

 

Iv taken apart every round and all have powder that Appears to be just that, unburned powder. Gonna order some fed primer friday and all the brass are LPP. Ive occasionally had a small primer pocket and there aint no way that primer will go into case. I pick up my brass and occasionally get a F.C. case that is small pistol. I think that is Fiocci brand. Im actually gonna save the primers and try them in my 44 mag. Never ever had a misfire. Ordered a new oem firing pin spring..5.5 lbs and a 6.5 different one just to test both. The guy told me after 1500 to 2000 rds on 45 could be weak spring. I know guys who shoot more than that no issues but weak spring could be a 5$ fix. (New when I bought gun)...Range day Thursday i hope ... spring coming from Connecticut so wont make it here till fillowing week. Im gonna be careful for sure. Thanks for your concern. Hope the primers fix the prob but im narrowing down things one at a time. Im not interested in ANY misfires. Dont always wet tumble brass... 5 hours in media is what i donow.. (sawdust). Appreciat ALL that made any suggestion...honestly!!!

 

How are you cleaning your brass?
Wet tumbling?
Maybe cases not completely dry when loaded?
Just trying to help you figure this out.

 

It's not easy being green.

 

This thread has me wondering. At an IDPA match this past weekend, I got screwed by a failure to detonate on the first shot at a drop-turner. For any unfamiliar, this is a target that once activated, literally drops several inches, then turns 90*. You have a very brief window during which to engage it, and then it's gone. I've been loading all my pistol ammo for about 15 years, and I think this is the first time I've had this happen. It's definitely the first time at an IDPA match. I did have one batch of ammo years ago (small primer .45acp) that caused multiple squibs at a bowling pin match. I ended up pulling the bullets from the rest of that batch of ammo, and found nothing wrong.
Anyway, what I'm wondering is, after roughly 20 years and who knows how many thousands of rounds through my Gen3 34 that I shoot IDPA with, should I have changed the striker spring? My failure round from the weekend did go bang the second time through the gun (shot a clay on the berm after the match)...so my assumption is, I screwed up and didn't fully seat that primer...in which case, I don't know that a stronger striker spring would make any difference.

 

Clean the firing pin spotface. That's where brass flakes build up, and get a 6lb firing pin spring. I've run over 300K of WIN primers and CCI, never a light strike. You do not need to clean primer pockets for pistol, but you do have to seat them correctly. High primer's is the most common cause of light strikes. Stand on that handle when priming.

 

 

Just ordered a 6 # spring, 2 to be exact. Never really count rounds, usually just boxes. I also ordered a stock spring just to try out if the 6# is to much pull for my old fingers.
Sorry to hear about your match. How could ya predict timing like that..shezzz. New springs next week.. then testing..
Thanks for your input also. Notes from a pro shooter...
Brad

 

Are the light strikes centered or off-centered?

if they are off-centered then the slide is not going fully into battery and it’s not an ammo or firing pin issue.

if they are centered then the problem is in the firing pin/ammo scope.

 

Not quite in battery could be an ammo issue (out of spec round not fully seating in the chamber). Usually, if that's the problem though, you'll know it, because the round won't easily eject and you'll have a hard time pulling the slide back.

 

Sure sounds like primer seating problem of some kind. Hard to believe a firing pin spring would wear that badly in a thousand rounds. You are getting pretty good primer strike dimples, so nothing in the firing pin mechanism seems to be malfunctioning.

Do you check every reloaded round for proper fit in a case gauge or actual disassembled barrel?

At least with my old eyes, it's tough to see primer seating as at or below case level. Fingernail test is better. But best would be getting an absolutely hard, flat surface like a sheet of glass or metal and placing the rounds primer-end first and seeing if they wobble.

Is this brass old or new?

 

What Gen Glock?

 

Gen 3, tad over a year old

 

I would check to see if the shoulder bolt that holds the shell plate is secure on your 450 loader. If that gets loose it can throw high primers. Gen 3 strikes should look like this.

 

I would check to see if the shoulder bolt that holds the shell plate is secure on your 450 loader. If that gets loose it can throw high primers. Gen 3 strikes should look like this.


View attachment 1340487

Thank you.. Best i check that today. Shoulder bolt? Location?just not sure where that is...

 

That the one in the middle of the shell plate? Secured by a set screw ?? I'll check both. Your strikes is huge. I have all primers below shell base.2 to 5 thousands.
That's measured with 2 mikes.. im gonna reshoot some dead primers in my gllck. Mine just don't hit that hard...

 

I have been checking each primer also by view and a machinest level across the shell base. Always see some light..or adjust....

 

Go with factory ammo and throw a few of your reloads into the mix gradually.

 

What’s the number stamped on the cruciform of your trigger bar? The 4256 had a short extension that caused light strikes in my 21.

 

Mine says 4256-3.

 

GRR, looks like the dash numbers were issued specifically for that reason. The current OEM Glock is part number 4417 marked as 4256-3

Trigger with trigger bar - G20,G20SF,G20Gen4,G21,G21SF,G21Gen4,G40Gen4MOS,G41Gen4 Smooth trigger (marked 4256-3)

I've got a complete trigger for a G21 from 1992. Have to dig it out and check the PN. Although I never had an issue with light strikes on that G21 with over 125,000 rounds.

 

Gonna see what glock/Lenny has to say. Just seems 2000 rounds if that many should produce light strikes... thank you for that part number. Pain in the asteroid to get out i know...
..thank you
Brad

 

Trigger with Trigger Bar 4256-3/4417 should fix the OPs issues.

 

Glock Lenny will try to sell you a new magic part....(If you ever met him, you would know). Better off to post in BrianEnos.com forums, under Glock and reloading. That's where competition shooters hang out and see alot more issues.

Glock

Technique, Technical, & Gear

forums.brianenos.com

44/45 Caliber

Also Dillon reloading forums

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Site will be available soon. Thank you for your patience!

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Glock Lenny will try to sell you a new magic part....(If you ever met him, you would know). Better off to post in BrianEnos.com forums, under Glock and reloading. That's where competition shooters hang out and see alot more issues.

Glock

Technique, Technical, & Gear

forums.brianenos.com

44/45 Caliber

Also Dillon reloading forums

Site is undergoing maintenance

Site will be available soon. Thank you for your patience!

reloader.com