Primer issues.... or something else.

[3006Sprng]

Hi all, ran into a new issue along my reloading journey, wanted to see if anyone else out there has seen the same thing.

Long story short, while working up a 180 grain load for my 30-06 I have now had 3/20 rounds fail to fire. I have yet to see this out of this brick of primers, I was 300/300 good before this, so I will elaborate on some other information that might add to this.

First time using virgin brass, I did FL size the brass because I got it from someone else years ago, and it had dented case mouths, so I wanted to straighten it out and make sure everything was straight and true, Shoulders were moved .002-.003.

I ran the same brand of primers, seating depth seemed good, no oddities, all slightly below flush. After firing, primers are not FLAT, but they are semi flattened, no other pressure signs such as cratering,

On one of the reloads that went "click........ no bang", I put it back in and it went bang.

Everything else was good, accuracy was superb, right at or slightly under 1" at all charges, velocity was much higher than expected with no other issues.

I want to see some opinions of thoughts of some seasoned reloaders,

Headspacing/sizing issue from FL sizing virgin brass?

The more unlikely "crap primers"?

The more highly unlikely "shot firing pin spring"?. (Ran an entire box of factory ammo, zero misfires).

What do you guys think?

 

[millerkiller77]

Any chance there was moisture in the case when you primed?

 

[Bullshot]

Can you check your brasses pocket depth? Maybe too deep and primers are moving on that 1st strike.

Try some harder to seat primers and see what happens.

 

[El Jason]

Could be shoulder is set back a little too much.

Could be primers need seated a little deeper.

Could be a weak firing pin spring.

Could be a combination of any of the above.

 

[3006Sprng]

Any chance there was moisture in the case when you primed?

No, i thought about powder and handling though, everything should have been good.

 

[3006Sprng]

Could be shoulder is set back a little too much.

Could be primers need seated a little deeper.

Could be a weak firing pin spring.

Could be a combination of any of the above.

I’m leaning towards the shoulders, This was virgin brass FL sized. Virgin brass could be been short, then I shortened it even further during FL sizing.

 

[3006Sprng]

Can you check your brasses pocket depth? Maybe too deep and primers are moving on that 1st strike.

Try some harder to seat primers and see what happens.

I’m fairly positive primer seating was good, and these are stiff primer pockets. The one misfired round did go bang on the second strike when I tried it again.

 

[kodiakisland]

Most likely a headspace issue with the new brass. Most new brass cases are undersize and if you purposefully bumped the shoulder the case is just being shoved into the chamber by the firing pin.

Two choices to fix it. Neck up brass and create a false shoulder or put the bullet into the lands. If doing the lands, reduce the charge a bit if you are at max.

 

[BrentD]

Hi all, ran into a new issue along my reloading journey, wanted to see if anyone else out there has seen the same thing.

Long story short, while working up a 180 grain load for my 30-06 I have now had 3/20 rounds fail to fire. I have yet to see this out of this brick of primers, I was 300/300 good before this, so I will elaborate on some other information that might add to this.

First time using virgin brass, I did FL size the brass because I got it from someone else years ago, and it had dented case mouths, so I wanted to straighten it out and make sure everything was straight and true, Shoulders were moved .002-.003.

I ran the same brand of primers, seating depth seemed good, no oddities, all slightly below flush. After firing, primers are not FLAT, but they are semi flattened, no other pressure signs such as cratering,

On one of the reloads that went "click........ no bang", I put it back in and it went bang.

Everything else was good, accuracy was superb, right at or slightly under 1" at all charges, velocity was much higher than expected with no other issues.

I want to see some opinions of thoughts of some seasoned reloaders,

Headspacing/sizing issue from FL sizing virgin brass?

The more unlikely "crap primers"?

The more highly unlikely "shot firing pin spring"?. (Ran an entire box of factory ammo, zero misfires).

What do you guys think?

Assuming you have inspected the entire length of the firing pin for damage and the firing pin's chamber for trash, goop, etc, I would wonder if you have started inconsistently seating your primers, some of them being seated to shallow.

 

[RealMuddyboots]

I'm in the headspace camp as the issue. FL sizing without knowing to what headspace dimension can get you into predicament. Strongly recommend Hornady Headspace Comparator so you can determine headspace of fired brass and how far to set back the shoulder. Redding Competition Shellholder set for standard bolt face will make setback spec the easy button.

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