Why do some semi's dent brass?
- Thread starter A.Rex
- Start date
You can solve that problem on ak's, valmets, galils, HK's etc by getting an 'ejection port buffer' which basicly puts a piece of rubber where the brass normally hits the action cover. Valmet's fit all non-ribber ak covers and snap into place easily. With out it my 223 mak90 just about cuts brass in half.
I don't personally reload... yet, but I have seen some fairly dented cases that were still reloaded and worked just fine. Depending on the metal fatigue of the mouth of the cartridge, the denting may only be reducing the number of times the case can be reloaded. Mild dents in the side of the case can sometimes be "shot" out. The pressure inside of the reloaded round when fired will force the case to expand to fill the chamber of the gun. I'm not too sure what the safe limit for reloading a dented cases is though.
Where is the brass hitting your M1A? My M1A spins the cartridges around and they hit (and leave brass mark on) the operating rod and stock. None of the cartridges are noticeably dented though. Are there any brass marks on your receiver or marks or chips in your stock?
Where is the brass hitting your M1A? My M1A spins the cartridges around and they hit (and leave brass mark on) the operating rod and stock. None of the cartridges are noticeably dented though. Are there any brass marks on your receiver or marks or chips in your stock?
A.Rex
You may also need to check to be sure the brass IS reloadable, I have seen some that wasn't. If you need brass check out http://www.scharch.com for 1X LC stuff, sized, cleaned, decapped, and trimmed.
You may also need to check to be sure the brass IS reloadable, I have seen some that wasn't. If you need brass check out http://www.scharch.com for 1X LC stuff, sized, cleaned, decapped, and trimmed.
I'm not sure yet where the brass is hitting. I didn't even notice until I got home and looked at a couple of the cases because it is so mild... just flattened slightly at the mouth. What I guess I need to do is watch someone else firing my rifle and see if I can pinpoint where the brass is hitting. I haven't found any marks on the stock or elsewhere.
Karsten, I had no idea that some brass couldn't be reloaded! I thought only rimfire was unreloadable brass. Thanks for the tip.
Karsten, I had no idea that some brass couldn't be reloaded! I thought only rimfire was unreloadable brass. Thanks for the tip.
A.Rex
Some cases have the Anvil in the flash pocket others have the Anvil in the Primer it self.
Note when you are buying the surplus whether it say Boxer (reloadable) Berdan (trash can) Now if you have a lot of time to waste I heard you can fix the berdan stuff. Trust me, I read what you have to do, trash it
That site I posted has 500 rnd LC I think for $35 or so, I forget now. It the mouth is not smashed the decapped pin should open it back up.
If your M1A is denting the stuff, it may go away after it is broken in? I had a 45 once that dented about every 3rd rounds it seems, gun ran fine. After about 2000 rounds the brass was left untouched. It may have been the load, the gun may have been new and way tight. But the problem went away in time.
As for watching someone else. Go look at the rifle and check for brass coloring on the reciever (if you fired the rifle enough) BY ALL MEANS DON'T TAKE A FILE TO IT.
I wouldn't worry about it, like a lot of guys said they have seen much worse. I hear FAL's darn near shred cases then the Butt dances on them while the owner is downrange
Maybe it was something designed into the weapons to make the brass useless.
I would just clean it good After each shot for awhile, and put a 100 more rounds through it. If that doesn't work you don't need the stress of dented cases. So box it up, if you bought lots of good USGI mags, box them up as well and send it off to me. I will just throw it in my JUNK GUN safe
Karsten
Some cases have the Anvil in the flash pocket others have the Anvil in the Primer it self.
Note when you are buying the surplus whether it say Boxer (reloadable) Berdan (trash can) Now if you have a lot of time to waste I heard you can fix the berdan stuff. Trust me, I read what you have to do, trash it
That site I posted has 500 rnd LC I think for $35 or so, I forget now. It the mouth is not smashed the decapped pin should open it back up. If your M1A is denting the stuff, it may go away after it is broken in? I had a 45 once that dented about every 3rd rounds it seems, gun ran fine. After about 2000 rounds the brass was left untouched. It may have been the load, the gun may have been new and way tight. But the problem went away in time.
As for watching someone else. Go look at the rifle and check for brass coloring on the reciever (if you fired the rifle enough) BY ALL MEANS DON'T TAKE A FILE TO IT.
I wouldn't worry about it, like a lot of guys said they have seen much worse. I hear FAL's darn near shred cases then the Butt dances on them while the owner is downrange
Maybe it was something designed into the weapons to make the brass useless.I would just clean it good After each shot for awhile, and put a 100 more rounds through it. If that doesn't work you don't need the stress of dented cases. So box it up, if you bought lots of good USGI mags, box them up as well and send it off to me. I will just throw it in my JUNK GUN safe
Karsten