primer coming out

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leveractiontodd

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Hello
I've discovered when depriming that out of 50 brand new remington 357 cases that 6 of the primers were missing. i'm using 4 grains of trail boss,cci mag primers and a 125 grain bullet cowboy action shooting. I checked my used federal cases with the same load and out of 200 3 were missing. I doen't know if this happened in the revoler or the lever.
Thank you Todd
 
leveractiontodd said:
Hello
I've discovered when depriming that out of 50 brand new remington 357 cases that 6 of the primers were missing. i'm using 4 grains of trail boss,cci mag primers and a 125 grain bullet cowboy action shooting. I checked my used federal cases with the same load and out of 200 3 were missing. I doen't know if this happened in the revoler or the lever.
Thank you Todd
Click to expand...

If the primers were backing out in your revolver they would have probably tied up the gun when they dragged across the recoil shield. Maybe check your lever gun's head space.
 
I don't believe this is a loading issue i'm new and quite paranoid of a squib load, cowboy action you're shooting as fast as you can. The rifle is a new 1897 winchester, the revolvers are new, ruger vaquero's. I'll go to the range and verify . 6 out of 50, it shouldn't take to long. I will keep you updated.
Todd
 
leveractiontodd said:
I don't believe this is a loading issue i'm new and quite paranoid of a squib load, cowboy action you're shooting as fast as you can. The rifle is a new 1897 winchester, the revolvers are new, ruger vaquero's. I'll go to the range and verify . 6 out of 50, it shouldn't take to long. I will keep you updated.
Todd
Click to expand...

Sounds like the primer developed more pressure than powder. Primer pockets stretched in cartridges that primer fell out of?
 
I just unprimed all the brands the new remingtons are easier then other brands and the 6 that were missing i tried repriming. Way to easy.I have about 800 of these ready to go. My real concern is primer going into my lever at a competion .
 
Suspect it's a QC issue and nothing whatever to do with you. Your load is fine, assuming your 125's are cast. No Trail Boss jacketed data on Hodgdon's site. That doesn't mean much though. You may want to think about using .357 brass loaded to .38 Special velocities. Not much difference with a 125 though.
Anyway, Federal brass is known for being softer than other brands, but that just means it won't last as long. Remington is reported has having QC issues of late.
Likely the only thing you can do is put your loaded ammo bullet down in your containers and eye ball 'em. Unless you want to physically measure every primer pocket.
 
Last year when i bought 357 brass for the first time i bought what i could get new and used. Assuming that availabilty is better what are good and bad choices
 
I find Federal brass to be okay for loading. Just not as many times. Often times, primers do go in too easy. This is a measurable difference, but only with special tooling. If you have hole gauges small enough, go ahead and use them for checking, but, to me, it's a waste of time. You can easily tell two things on a press: primer pocket stretch and when it's time to anneal your brass. When primers seat way too easy, I ditch the cases because primer pockets are too big. And when bullets seat too easy (or actually drop into the case mouth), it's time to anneal that entire batch of 50 cases. I separate those cases from the batch, continue with those that did seat well, and then anneal that batch once it has been shot. With Federal cases, I don't often get to anneal, the pockets are gone long before the mouths need attention. Then, the whole batch just goes in my scrap bin. I trade brass for lead at the scrap dealer every spring.
 
I've never come across a batch of CCIs that were undersized, but its possible I suppose. If some resistance isn't evident when priming a cartridge, the brass has seen its life and should be culled. Recently I loaded some .338s with brand new Winchester brass. Those primer pockets were oversized right out of the plastic bag!
 
This is probably the result of a combination of loose primer pockets, generous headspace and a very low pressure load.
 
Below is an example of how I test primer pockets, they are not .357 cases but the same rules apply.

Below in my scrap brass bucket are factory loaded once fired Federal .223/5.56 cases with oversized primer pockets.

193natorejects001_zps87560a0a.jpg


The problem you are having can be twofold meaning soft improperly made cases and undersized primers or primers at the minimum diameter dimension.

A simple fix is to buy pin gauges for the min and max allowable primer pocket diameters, they come in .0005 diameter increments.

Below the pin gauge below is the max diameter for a small rifle primer and this once fired Federal case goes in the scrap bucket.

looseprimer005_zps7fe118e2.jpg


A simple test of your seated primers is the use a Lee depriming tool made for the Lee loader. If you can push the primer out with just finger pressure the primer is too loose.

looseprimer004_zps1cb656b2.jpg


Below primer pocket and primer min and max diameters. (use info for ordering pin gauges)

primersizes_zpse9099651.jpg


Pin gauges at Amazon
http://www.amazon.com/dp/B004UBOGIM/ref=biss_dp_sa1
 
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