texashuntingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
TraeMartin, Beatixre, MooseSteed, Trappernewt, casyoo
71987 Registered Users
Top Posters(All Time)
dogcatcher 110,788
bill oxner 91,416
SnakeWrangler 65,413
stxranchman 60,296
Gravytrain 46,950
RKHarm24 44,585
rifleman 44,461
Stub 43,764
Forum Statistics
Forums46
Topics536,988
Posts9,719,168
Members86,987
Most Online25,604
Feb 12th, 2024
Print Thread
Help with primer issue #7685894 12/11/19 03:37 AM
Joined: Sep 2004
Posts: 606
L
Longtine Offline OP
Tracker
OP Offline
Tracker
L
Joined: Sep 2004
Posts: 606
Reloading new brass for a 7mm Magnum. The brass is Nosler new brass. The primers are CCI250 and Rem 7 1/2. The rifle is Bergara Premier Approach and a Highlander. Over the course of 50 rounds fired......I've had 10 misfires where the primer never fired. The indentions are small. Factory ammo will fire every time. The protrusion of the firing pin is 0.53" from bolt face. On 2 of the cartridges that misfired I pulled the bullet, dumbed the powder and got the primer out and the primer never fired. So I took once fired brass.....loaded a new primer in it without resizing and the firing pin will ignite the primer. Do you think head space is the issue? I gave up on it at dark. Going to pick back up tomorrow with it. I don't think it is the rifles since factory ammo works. So if factory ammo works (you know there is a pretty good setback on those) and some of the new brass loads are not.....what gives?

Chad.....need some input and whoever else can solve this problem.

Re: Help with primer issue [Re: Longtine] #7685921 12/11/19 04:23 AM
Joined: Sep 2006
Posts: 32,442
kmon11 Offline
junior
Offline
junior
Joined: Sep 2006
Posts: 32,442
Are you sure you are seating the primers enough? The primers should be slightly below the case head if not the firing pin can seat them further and not dent the primer enough to make good contact with the anvil in the primer causing it not to ignite. In that case some of the energy of the firing pin is used to seat the primer and causes a light strike.


lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Help with primer issue [Re: Longtine] #7685939 12/11/19 05:38 AM
Joined: Sep 2009
Posts: 18,907
C
ChadTRG42 Offline
THF Celebrity
Offline
THF Celebrity
C
Joined: Sep 2009
Posts: 18,907
How deep is your primer below flush (or is it below flush)? You'll need to measure the depth with the back side of a caliper. Also, how are you seating the primers- hand primer, press, priming tool? Are your primer depth measurements consistent on multiple cases? The 7 Mag head spaces on the belt, so there's generally not a lot of slop to cause an issue. Most issues I hear of primers not going bang is from shooters priming on a hand primer, and the depth being off or inconsistent. Norma/Nosler brass has firm primer pockets and can be tough to get them seated properly.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: Help with primer issue [Re: Longtine] #7686065 12/11/19 02:48 PM
Joined: Aug 2011
Posts: 6,168
T
Tactical Cowboy Offline
THF Trophy Hunter
Offline
THF Trophy Hunter
T
Joined: Aug 2011
Posts: 6,168
How are you seating primers?

I’m agreeing with the other two guys—primers aren’t deep enough. Did you try to fire any of them a second time?


The secret to a long life is to try not to shorten it.
Re: Help with primer issue [Re: Longtine] #7686132 12/11/19 03:37 PM
Joined: Oct 2004
Posts: 39,481
R
redchevy Offline
THF Celebrity
Offline
THF Celebrity
R
Joined: Oct 2004
Posts: 39,481
Also maybe the load calls for it or maybe it doesn't, I don't know. I always used Rem 9 1/2 magnum primers for 300 mags would use same if I was loading a 7 mag. The 7 1/2 is a large rifle primer I believe.


It's hell eatin em live
Re: Help with primer issue [Re: Longtine] #7686368 12/11/19 07:55 PM
Joined: Jul 2008
Posts: 122
A
aggie-01 Offline
Woodsman
Offline
Woodsman
A
Joined: Jul 2008
Posts: 122
Chad

If you are using a hand primer can you seat the already primed primer deeper? I use one and gaining knowledge for the future if this ever happens to me.


Mitch
Re: Help with primer issue [Re: Longtine] #7686386 12/11/19 08:16 PM
Joined: Sep 2009
Posts: 18,907
C
ChadTRG42 Offline
THF Celebrity
Offline
THF Celebrity
C
Joined: Sep 2009
Posts: 18,907
Yes, very carefully!! But, I'd recommend pulling the bullet first if it's loaded ammo. If the round is already loaded, powder can get down into the flash hole and inside the void areas of the primer pocket. If you try to seat it deeper and there is powder there preventing the primer from going deeper, you can cause an issue.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: Help with primer issue [Re: ChadTRG42] #7686432 12/11/19 09:04 PM
Joined: Jul 2008
Posts: 122
A
aggie-01 Offline
Woodsman
Offline
Woodsman
A
Joined: Jul 2008
Posts: 122
Good thought on pulling the bullet first. Thanks for the info!!


Mitch
Re: Help with primer issue [Re: Longtine] #7686789 12/12/19 06:59 AM
Joined: Sep 2004
Posts: 606
L
Longtine Offline OP
Tracker
OP Offline
Tracker
L
Joined: Sep 2004
Posts: 606
I have seated the primers until they bottom out. They are all the same and below flush. That was a typo on the 7 1/2.....they were 9 1/2 magnum primers. I got some Winchester Magnum Primers and will try them tomorrow. Yes it is a hand primer but I like using it so I can feel when they do bottom out. I also have new brass coming again. Today I extracted the firing pin and found that on the side of the pin it is rubbing on the hole of the bolt face. So I took some super fine sand paper and buffed it smooth. Everyone is telling me on Sniperhide that it's a headspace issue. I have some head space gauges coming. Tomorrow I am neck sizing some of the fired brass and trying them in it. Some say I have pushed the shoulders too far back with the dies. Not sure.

Can I take the once fired brass.....stick it in the chamber, and with the firing pin out to where it won't cam.....can i keep closing the bolt and resizing the once fired brass until the bolt closes easier and that be my depth of the die?

Re: Help with primer issue [Re: Longtine] #7686791 12/12/19 07:00 AM
Joined: Sep 2004
Posts: 606
L
Longtine Offline OP
Tracker
OP Offline
Tracker
L
Joined: Sep 2004
Posts: 606
Oh and I did try Remington brass and had the same result. About 15% of them don't fire.

Re: Help with primer issue [Re: Longtine] #7687005 12/12/19 04:41 PM
Joined: Sep 2009
Posts: 18,907
C
ChadTRG42 Offline
THF Celebrity
Offline
THF Celebrity
C
Joined: Sep 2009
Posts: 18,907
Originally Posted by Longtine
Everyone is telling me on Sniperhide that it's a headspace issue. I have some head space gauges coming. Tomorrow I am neck sizing some of the fired brass and trying them in it. Some say I have pushed the shoulders too far back with the dies. Not sure.


The 7 Mag head spaces on the belt of the case, not the shoulder. So how would the neck sizing vs FL sizing solve your problem of head space? IMO, that's an unrelated issue.

When you say that the primer bottoms out, you still didn't answer the question on the measurement of primer depth. That's a critical measurement. "Below flush" is a vague description. If the primer is too deep, then you will have these issues. I'm trying to answer your question, but with minimal details.


[Linked Image]
Custom and Precision Ammunition!!
https://DallasReloads.com/
Type 01 and Type 06 FFL
Re: Help with primer issue [Re: Longtine] #7687027 12/12/19 05:15 PM
Joined: Sep 2006
Posts: 32,442
kmon11 Offline
junior
Offline
junior
Joined: Sep 2006
Posts: 32,442
If the chamber is cut wrong so it does not headspace off the belt then it could be but the belt is there for hedspece reasons.

You could do what you suggested and see if that works with a tight fit, head spacing off the shoulder.

The measurement Chd ask for could also help diagnose the issue

Last edited by kmon1; 12/12/19 05:16 PM.

lf the saying "Liar, Liar your pants on fire" were true
Mainstream news might be fun to watch
Re: Help with primer issue [Re: Longtine] #7687534 12/13/19 04:26 AM
Joined: Apr 2011
Posts: 1,325
R
RJH1 Offline
Pro Tracker
Offline
Pro Tracker
R
Joined: Apr 2011
Posts: 1,325
You said you are using cci and remington primers, do both brands of primers misfire? I had factory Remington rifle ammo that would misfire and handloads in a handgun with remington primers that would misfire. Changed to cci or winchester primers and all my problems went away. I even primed and fired empty brass and had misfires with the Remington primers and then primed the SAME brass with cci primers and all the primers went off. IDK how much you have reloaded but i have loaded a ton and i suspected my process first, cause usually when you have ammo problems with reloads it is your own fault, but in this case it was not. So try to isolate which brand of primer is not firing, if it is both, it probably is not the primers, but if it is only one, that brand of primer could very well be the issue

Re: Help with primer issue [Re: Longtine] #7687918 12/13/19 05:11 PM
Joined: Sep 2004
Posts: 606
L
Longtine Offline OP
Tracker
OP Offline
Tracker
L
Joined: Sep 2004
Posts: 606
I took the firing pin out of the bolt assembly. On one side of the pin it was rubbing against the side of the hole coming out of the bolt face. I took some emory clothe and buffed it smooth. I then reset my die depth by running once fired brass back into the chamber and backing off the die until i got a smooth closing of the bolt.

Reloaded 5 sets of 3. All 15 shots fired. Shot 1 box of 20 factory Hornady Precision Hunter in 162 ELD X. All of them fired. And I got some amazing groups with the hornday factory's. Really no sense to reload after that.

So I guess the combination of what I did fixed my problem.

Previous Thread
Index
Next Thread

© 2004-2024 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3