duff primer?
- Thread starter andychas
- Start date
Sauer90
Well-Known Member
You will find that modern primers are actually quite resistant to oil sweat water etc. They are manufactured with a protective coating over the priming compound.
Basically old wives tale.
Basically old wives tale.
. 
As far as I know I tipped the cases directly from packet to feed tray and they were not touched by 'uman 'and. The cases were Ultra Sonic cleaned with citric acid and washing up liquid before and after F/L sizing and trimming, bicarbonate soda solution stopped, hot water rinsed, whirled in a towel and left at least overnight on a night store heater so should be well dry.
On the packet it states that "Primers exposed to lubricants, chemicals or excessive moisture may malfunction". They should not have come into contact with any of those...nearest would be damp breath.
I have written to CCI and asked if they would let me have an email address to send the photos to them for their assessment.
Alan
On the packet it states that "Primers exposed to lubricants, chemicals or excessive moisture may malfunction". They should not have come into contact with any of those...nearest would be damp breath.
I have written to CCI and asked if they would let me have an email address to send the photos to them for their assessment.
Alan
CCI agree with you according to the legend on the packet, even if Sauer90 does not.
Anybody have any thoughts as to the shiny egg shaped thing seen behind the anvil leg?
I certainly didn't introduce that inadvertently...must admit I did not notice it when I first dismantled the round in December...maybe it was obscured by the carbon(?) pillars that have subsequently flopped.
Alan
Quite agree...I have done a few stupid experiments trying to see if I could neutralise them. They make a loud noise if you hit them with a hammer and forget the earmuffs...even when hiding behind a steel plate.
Any thoughts on the shiny egg object?
Alan
kenbro
Well-Known Member
I too have recently had misfires with CCI400 SR primers, around 15 FTF out of 200 rounds.
Tried firing them after emptying the cases of powder, no luck.
Put them on my anvil and they took a heavy hammer blow to set them off.
Changed to R.E.M. 7 1/2 and no problem.
Ken.
UPDATE
just to put this one to bed, after finally getting round to dismantling the cartridge, what did we find? no powder! the primer had fired but with no powder in the case. Fortunately not enough energy had been generated to move the bullet up and lodge in the barrel.
So lessons learnt?
Double check everything of course, including a quick shake and visual check of the rounds.
As I mentioned in the original posting, I've been loading up these together with my mate (an experienced loader, recently moved and no got kit set up yet) for his 6.5x55. I dont necessarily like the idea of loading for someone else as a regular routine, so was much more comfortable with us both doing it together. The down side of having two blokes doing this is that its very, very easy to get distracted by something (conversation, joke etc). Despite the fact that we divided the jobs, one powder weighing, one bullet seating etc, a mistake got through the net in this instance, fortunately with no serious consequences. My advice (to myself and others) is nothing new, when reloading, take extra care and double check everything, avoid distractions, set up a workflow and keep to it.
just to put this one to bed, after finally getting round to dismantling the cartridge, what did we find? no powder! the primer had fired but with no powder in the case. Fortunately not enough energy had been generated to move the bullet up and lodge in the barrel.
So lessons learnt?
Double check everything of course, including a quick shake and visual check of the rounds.
As I mentioned in the original posting, I've been loading up these together with my mate (an experienced loader, recently moved and no got kit set up yet) for his 6.5x55. I dont necessarily like the idea of loading for someone else as a regular routine, so was much more comfortable with us both doing it together. The down side of having two blokes doing this is that its very, very easy to get distracted by something (conversation, joke etc). Despite the fact that we divided the jobs, one powder weighing, one bullet seating etc, a mistake got through the net in this instance, fortunately with no serious consequences. My advice (to myself and others) is nothing new, when reloading, take extra care and double check everything, avoid distractions, set up a workflow and keep to it.
I have missed putting powder in the case a few times, I now have a small torch on my loading bench and check the cases in the block have powder at the same level before seating the bullets
seems to work haven't had any empty cases since, always reload with no distractions no phone radio or people complete each operation with out stopping,
seems to work haven't had any empty cases since, always reload with no distractions no phone radio or people complete each operation with out stopping,
Ditto. I have a small torch on my bench for exactly the same purpose.
It might be overkill, but I also weigh all my loaded rounds. Accepting that there may be variance in brass, every complete round should be within 2 or 3 grains - 223, for example, is anywhere from 176 to 179 grains. Anything a long way outside that is viewed as dubious.
Having 2 people do the job of reloading seems to me to be asking for trouble.
Buggadifino
Well-Known Member
I would caution against taking primers apart that may have misfired. Remember you are dealing with a small amount of primary explosive that has received an 'insult' - it may now be angry!
I'd agree normally, but equally I wasn't comfortable with the idea of reloading for someone else unseen, nor would I expect him to be confident in using rounds loaded by someone else unseen. Clearly mistakes can and do happen even if you are on your own, but it certainly helps to have as few distractions as possible.
The 'click' occurrs if the bolt is not in battery, i.e. not fully closed. Pussy-footing about instead of closing the bolt with a positive forward shove can result in this situation.
That primer looks slightly backed out of the primer pocket, in which case it fired normally. And if that's so, then I'll wager there was no powder charge in the case. Highly unlikely to be a defective primer. The OP should pull the bullet and look inside the case.
-JMS
That's what it looked like to me (done it myself). So, no failure of the primer.
Be methodical and don't get distracted
And there's the source of the problem, distraction. Very easily done.
After you've charged all the cases with powder, and they're sitting in a loading tray, hold them under a good light and inspect every one to ensure there is actually powder in there. If you are working together, allocate this responsibility to the person who seats the bullets - he checks every case before starting to seat bullets.
-JMS
It did look very similar to the image I posted in post #19 and that had powder in the case.
duff primer? - Page 2
The Tech support man at CCI said it was one in a million failure rate. Which is fair enough.
But I lost a bit of confidence in his impartiality and knowledge when he claimed that he could not see the the little shiny egg shaped thing you can see behind the anvil leg, let alone make a suggestion as to what it was.
Alan
Andy seatrout
Well-Known Member
To be fair it’s my first ‘unexplained’ in twelve years of rifle shooting….. all the others went bang… I shall carefully disassemble
Andy seatrout
Well-Known Member
That’s what I think is most likely I’ve got over excited with the lube; I’ve a hornady lock n load progressive press and it runs from case sizing ( I deprime by hand so I can inspect and clean the primer pocket… ) to primer seating on the downstroke and then powder measure on the upstroke, next is a powder cop dip stick ( not perfect but it tells me if there’s powder in there…) then an empty station- was supposed to be a bullet feeder but it’s redundant and my fingers do a better job in placing the bullet into the seater die which is the last stage before it chucks the round into the ‘finished bin’….
I think some of the cases must have been ‘overlubed’ and this has seeped into the primer…. I also get sweaty hands- not ideal ….
After the rounds are in the bin ( I usually do 30-50 at a time, once you have it set up and running this can take only 15 mins or so) I weigh each completed round….. usually less than 2 grains variation…. any with incorrect powder charge can then be found and disassembled …… there’s sometimes a primer missing, sometimes the powder clogs, but once set I can produce reasonable volumes….
Similar threads
