I picked up a bunch of Winchester 9mm brass Thursday and in preparing for tumbling noticed they have a crimped primer. Is this now the norm for Winchester brass or did I pick up some military or police brass? Dread having to remove crimps from 9mm brass but hate throwing once fired brass in the scrap bucket.
Win 9mm Now With Crimped Primers?
- Thread starter PCCUSNRET
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jwrowland77
Member
WCC brass? Military brass
I've used WCC brass and Win brass. Ones NATO ones not.
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I've used WCC brass and Win brass. Ones NATO ones not.
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Edcnh
Member
Winchester 9mm NATO has crimped primers.
In reality, removing primer pocket crimps is an easy, quick, one time deal. I've done untold numbers of military brass and it's really no big deal. I inspect all my brass and when I do military "once fired" I just put a countersink in my drill and when I pick up a case, look at it, press the primer pocket against the turning countersink for 1/2 second (or less). Done...
My last box of WWB had crimped primer pockets. But the headstamp was WCC, not the normal WIN.
PCCUSNRET, this is the 1st I have heard of WIN headstamp having the primer pockets crimped. I do as mdi said, a counter-sink cutter enough to remove it.
PCCUSNRET, this is the 1st I have heard of WIN headstamp having the primer pockets crimped. I do as mdi said, a counter-sink cutter enough to remove it.
Cheesemaker
Member
All "NATO" spec ammo needs to be crimped? I thought I heard/read this once....maybe it was sealed....getting old here
Don't think I will mess with removing the crimp in this brass for now. I removed the crimp in over 1,000 pieces of WCC 9mm brass last winter and have yet to load any of it. Folks at our range have been leaving their 9mm, .380, 223 and 40 S&W lying on the ground and I have gotten to where the only brass I bother to pick up is 223 & 380. I may regret this come November but for now I have enough to last me the rest of my life.
rodregier
Member
NATO spec requires crimped primers.
I would not have an issue with using crimped factory ammunition for self defense as the primer is less likely to be blown out in a high pressure round. I have no idea what they are loading 9mm to, but I have heard things like +P+ level ammunition for the military, because the 9mm is so ineffective.
When I read of the almost proof pressure levels the US Army is loading their environmentally friendly 5.56, they better be crimping the primers because if a primer gets loose in an AR15, it will jam up the weapon. I have not had a primer blow in a Beretta 92, but that pistol has an open top design and you can drop the magazine, rack the slide, and get your fingers in there if need be. An AR15, most NRA service rifle shooters have learned to carry a needle nosed multi tool because the ejection port is so small. I have cleared a number of AR15's, on the firing line, when either a cartridge jams up under the gas tube, or a primer gets loose. First thing to do is put the safety on, drop the magazine, if possible, and separate the upper from the lower.
I had a primer get loose in my match AR15, I had to take the thing off the range and knock out trigger pins, because the primer was way down in the trigger mechanism. I missed 300 rapid fire but was able to join the fun at 600 SF. I never had those sort of issues with a Garand mechanism as junk that drops down into the trigger mechanism is easy to clear, and if a primer got loose in the upper, it falls out.
Anyway, I separate out crimped 9mm and one day, I am going to swage the pockets. I have a ziplock baggy full of the stuff.
When I read of the almost proof pressure levels the US Army is loading their environmentally friendly 5.56, they better be crimping the primers because if a primer gets loose in an AR15, it will jam up the weapon. I have not had a primer blow in a Beretta 92, but that pistol has an open top design and you can drop the magazine, rack the slide, and get your fingers in there if need be. An AR15, most NRA service rifle shooters have learned to carry a needle nosed multi tool because the ejection port is so small. I have cleared a number of AR15's, on the firing line, when either a cartridge jams up under the gas tube, or a primer gets loose. First thing to do is put the safety on, drop the magazine, if possible, and separate the upper from the lower.
I had a primer get loose in my match AR15, I had to take the thing off the range and knock out trigger pins, because the primer was way down in the trigger mechanism. I missed 300 rapid fire but was able to join the fun at 600 SF. I never had those sort of issues with a Garand mechanism as junk that drops down into the trigger mechanism is easy to clear, and if a primer got loose in the upper, it falls out.
Anyway, I separate out crimped 9mm and one day, I am going to swage the pockets. I have a ziplock baggy full of the stuff.
Jim Watson
Member
With the observed phenomenon that some retail 9mm has crimped primers as used by the military, and some does not, there must be a reason.
My THEORY is that they have inventory of crimped primer brass or ammo above their government orders, so they box it up and sell it to Cheapmart.
My THEORY is that they have inventory of crimped primer brass or ammo above their government orders, so they box it up and sell it to Cheapmart.
A bud of mine oversaw calibration at Army Ammunition depots. What you basically see in Army Ammunition plants is an example of where private industry runs the plant, but the American taxpayer pays for the operation and maintenance. The contractor gets to keep the profits. These Government Owned, Contractor Operated plants have strange behaviors that benefit the Contractor running the plant. One behavior my bud mentioned, is that after the Contractor has met Government requirements for ammunition, they get to run the plant for their benefit. So you will see cases on the market, if not fully loaded ammunition, that came off the same production line, same stampings and performance characteristics, as military ammunition. Maybe this is good for the "big picture" as the plant employees are kept busy and the plant does not shut down. Anyway, this explains why we are seeing military stuff sold as branded ammunition.
The brass is being tumbled now but once clean I will try to seat a primer in one of these cases. I have found some other 9mm brass that had crimps but the primers still seated without removing the crimp. I use one of the Dillon 600's to remove crimps from military brass but haven't invested in the part that allows it to be used for 9mm.
berettaprofessor
Member
Note to self: Avoid...avoid...avoid. I spend enough time removing crimps from 5.56, don't want to do it for 9mm too and certainly don't want to encourage manufacturers of civilian ammo to do this.
Now that they are all cleaned up I've taken a photo of some of this brass. The good news is that I was able to easily prime this brass without messing with removing the crimp. I am using CCI small pistol primers and priming the brass on a Dillon 550B. I just tried 2 and the primers went in without any problems. Not really sure what the point was in this crimp as I doubt it did anything towards holding the primer in the pocket.
The bottom photo was taken of some brass that I picked up with this Winchester crimped brass that I have never seen before. Any ideas on where it was made? Thanks!
The bottom photo was taken of some brass that I picked up with this Winchester crimped brass that I have never seen before. Any ideas on where it was made? Thanks!
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gpb
Member
"The bottom photo was taken of some brass that I picked up with this Winchester crimped brass that I have never seen before. Any ideas on where it was made? Thanks!"
It maybe the new Browning ammunition.
It maybe the new Browning ammunition.
Hangingrock
Member
I have yet to see crimped in primers in WWB 100 round value packs. On the other hand the 50 round boxes of WWB I've witnessed on occasion the WWC cases marked with the NATO symbol on the cases.
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