I think I paid $10-11 per sleeve, I forget.
Primers In-Stock
- Thread starter Xae289
- Start date
Uninformed and Compliant
.450/400 Nitro Ex
repete
.338 Win Mag
Ouch! I bet that hurt.
kev74
20×102mm Vulcan
That can also happen if the primers aren't fully seated. The first try will finish seating it, the next try will set it off.
I'm glad they worked for you.
gun_slinger_boy
.338 Win Mag
Good. So you may have possibly eliminated that the primers themselves are bad. You could try next what @kev74 is alluding to. Go through all your reloads and seat them to the max. What system are you using to prime? If a hand primer, you just gotta squeeze until it will squeeze no more. If on a press you may have to adjust the seating depth.
If you also have access to other 9mm guns you may be able to eliminate the strength of the firing pin itself being too weak. That would lead you to possibly have to change a firing pin spring in your 320 (extremely unlikely) or it may just be that the gun design itself isn't fully up to igniting those type of primers reliably.
If everything turns out to be proper but primers not igniting is still an issue, then I would conclude the primers themselves are harder than normal. This is indeed a real thing/issue because the ammo/primers were made for stronger striking military style guns.
280 Round Pack - Hard Primer 7.62x25 FMJ Yugo Military Surplus Ammo - Made in 1960s by PPU - Read Description | SGAmmo.com
280 Round pack of 7.62x25 FMJ Yugoslavian Military Surplus Ammo For Sale, this is a plastic wrapped bundle that contains 4x70 round boxesDescription Notice : Yugo 762x25 ammo is loaded with hard primers to prevent slam-fire in sub machine guns, you may get some rounds that fail to fire on the...
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kev74
20×102mm Vulcan
tpmcman
22lr
Great Points!!!! I did try both a P365 (5K thru it) and P365XL (300 rnd thru it) and found misfires in both pistols. Ran thru about 150 rounds of CCI Blazer 124g with P365 just after evaluating reload ladder. They all went bang every time. Using Hornady LnL progressive press Ill have to check to see if I can adjust the seating depth but all are flat to the rim of the cartridge. My previous batch were federal match primers (dam expensive) and those all went bang. Thanks for taking the time to answer my question and all of your advice, ideas make alot of sense. This is a great forum.Good. So you may have possibly eliminated that the primers themselves are bad. You could try next what @kev74 is alluding to. Go through all your reloads and seat them to the max. What system are you using to prime? If a hand primer, you just gotta squeeze until it will squeeze no more. If on a press you may have to adjust the seating depth.
If you also have access to other 9mm guns you may be able to eliminate the strength of the firing pin itself being too weak. That would lead you to possibly have to change a firing pin spring in your 320 (extremely unlikely) or it may just be that the gun design itself isn't fully up to igniting those type of primers reliably.
If everything turns out to be proper but primers not igniting is still an issue, then I would conclude the primers themselves are harder than normal. This is indeed a real thing/issue because the ammo/primers were made for stronger striking military style guns.
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View attachment 193885
280 Round Pack - Hard Primer 7.62x25 FMJ Yugo Military Surplus Ammo - Made in 1960s by PPU - Read Description | SGAmmo.com
280 Round pack of 7.62x25 FMJ Yugoslavian Military Surplus Ammo For Sale, this is a plastic wrapped bundle that contains 4x70 round boxesDescription Notice : Yugo 762x25 ammo is loaded with hard primers to prevent slam-fire in sub machine guns, you may get some rounds that fail to fire on the...www.sgammo.com
tpmcman
22lr
OK another good point! didn't think of that as they seemed to be seated all the way. Using L n L progressive press. All seemed to be seated flat much like many other reloads Ive done in the past... But maybe they are not seated all the way by just enough to not go bang the first time. Its possible...
repete
.338 Win Mag
I have 2 Lee pro 1000 presses, one will seat primers no problem, the other doesn't quite get them fully seated. It took me awhile to figure that out, the primers look seated but aren't. My Temporary fix was to tape a feeler gauge under the primer rod. I believe it was about .020", that gave the rod just enough height to seat them all the way to the bottom and not just flush.OK another good point! didn't think of that as they seemed to be seated all the way. Using L n L progressive press. All seemed to be seated flat much like many other reloads Ive done in the past... But maybe they are not seated all the way by just enough to not go bang the first time. Its possible...
Just throwing that out there, some year I might get around to really fixing it!
gun_slinger_boy
.338 Win Mag
I think this is the safe bet. Seating below flush has always worked for me. It provides a nice sold opposing force to let the anvil do it's thing. It will also make your dimensional measurements like COL more consistent provided the brass is similar or the same.
@tpmcman primers are all relatively soft. Even the "hard" ones. This is why there's not much data to be had when looking at flattening unless you're talking about the extreme end of hot loads. There you'll start to see things like flow and nippling. There are definitely differences in the softness of primers from one to the other however. I've found that CCI tends to be the hardest of the American primers and Federal the softest. Federal being so soft that you can even start to flatten them a bit just by seating them. This is all to say that as long as you seat them properly, almost all primers across the board will work pretty well unless the quality control for that brand is bad.
repete
.338 Win Mag
By todays prices that's not bad, add in the free Hazmat and it looks even better!