Thread: White River Primers - Any misfire issues?

Lol I found some wronguns the other day...didn't even know there was Berdan primed small rifle but found half dozen 5.56,luckily I realised something wrong when ram stopped so had a look. Sorted 300 cases via head stamp after that lol

I learnt new trick the other day.with care I can get Lyman case deburring tool to clamp in chuck of cordless drill. Looks like a rocket ship.holding carefully while closing chuck,the jaws come out and grip shaft. Too easy and quick to whizz up primer pockets then.

What upsets me most about all this, is that he threw the powder away. Why did he throw the powder away? Not only do I reuse the powder from dismantled cartridges, I reuse the primers too. And the bullets and cases.

Originally Posted by BillyDixon

What upsets me most about all this, is that he threw the powder away. Why did he throw the powder away? Not only do I reuse the powder from dismantled cartridges, I reuse the primers too. And the bullets and cases.

Only two cases so didn’t bother and at the time I didn’t know what the primer had done so didn’t just tip back into my container - I have reused before

Those ones that didn't go off look almost cupped from the firing pin strike to me - I would suggest that the issue may be related to what is for some reason known as primer sensitising during the primer seating operation or in other words they haven't been squeezed in hard enough to get the cup fully seated onto the anvil.

It's a fairly critical part of the operation, and doesn't take much of an error here to upset things enough that they don't play. What do you use to seat them?

Originally Posted by johnd

Can you point us to some info please, I religously decock some actions. Not doubting your remark but would like some proof.

There is another plurry good reason to do it.... If someone does manage to get ahold of rifle and bolt...it won't go in. Until it's been turned again as young Brad found out with his sako.

Originally Posted by No.3

Those ones that didn't go off look almost cupped from the firing pin strike to me - I would suggest that the issue may be related to what is for some reason known as primer sensitising during the primer seating operation or in other words they haven't been squeezed in hard enough to get the cup fully seated onto the anvil.

It's a fairly critical part of the operation, and doesn't take much of an error here to upset things enough that they don't play. What do you use to seat them?

Just used the priming tool in the cheap Lee press (it’s not a hand primer).

Lol. For decrimping I use a Stanley knife. Does the job.

My model 7 .223 use to do this couldnt hit CCI hard enough but cratered on the fed 210s I put it to light strike

Can’t be arsed going back and reading the whole thread but I don’t think anyone has said try the rounds in another rifle if possible, removes one variable possibly.

Ive loaded white river primers in my 303, k98 mauser, mosin nagant, k31 swiss and not had a single misfire over about 150 rounds ive loaded with them so far. Would be good to find a mate with the same calibre and try firing them in that. Bit late now obviously. They had a few problems lately at the local shotgun range with seeing more misfires than usual. Someone there reckoned the primer quality has gone down since the war in ukraine etc?

I heard of the shotgun issue two years ago haven't struck it yet myself.

Originally Posted by Forestry

Just used the priming tool in the cheap Lee press (it’s not a hand primer).

Ahh - I found my priming improved a LOT with going to a hand primer, could feel and judge when the primer cup was properly seated. For some reason I was getting the odd proud and tall one out of the press priming lever and was having to stick them back in for another go or two. Worth a double look after each priming operation and check they are all fully seated and seated to the same depth...