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1/30/2011 2:55:10 PM EDT
I'm not new to reloading, but I have not reloaded military brass before.  I just bought 2,000 pieces of once fired brass and it is not what I expected.  There are more cases with bent mouths than there are not, about 6 to 1 and a lot of cases with dents in them.  Is this normal for military brass, and what are safe guidelines in determining which pieces I should discard?
1/30/2011 3:03:26 PM EDT
[#1]
Dented case mouths will straighten out just fine during the resizing stage.

I suggest usings a Sinclair International neck expander or K&M's expandiron on the really bad ones first. On the cheap and easy side you can simply insert the bullet of a dedicated M193 round and it will round and flair the bent case mouth enough to resize the case.

I knock all the primers out of surplus brass on a dedicated press (cheaper is better) and use Lee's decapping die. Every G.I. case needs to have the primer pocket crimp removed before it will accept a new primer. This can be incorporated into rounding the case mouths on badly dented caes. Just have an old round close by when you are decapping and insert it as needed.
1/30/2011 3:09:19 PM EDT
[#2]
I have the lee universal decapping die, and a dillon super swage for the primer pockets.
1/30/2011 4:05:17 PM EDT
[#3]
Should be a none issue , i decap  then clean and inspect, then FL size with a small base die . Always look for ring at the base and other bad dings and toss them , small dents are ok and case mouth will be fine when resized. Then I check them with a wilson case gauge.
1/30/2011 5:05:13 PM EDT
[#4]
Quoted:
Should be a none issue , i decap  then clean and inspect, then FL size with a small base die . Always look for ring at the base and other bad dings and toss them , small dents are ok and case mouth will be fine when resized. Then I check them with a wilson case gauge.


What are the benefits of using the small base die?
1/30/2011 5:23:41 PM EDT
[#5]
i have a tight chamber on my ar10 and found 3 different die sets didnt work well so i had to go to small base, its just a extra assurance that you will have fewer problems down the road . do some googling , alot of people are using small base for semi auto's.
1/30/2011 6:33:54 PM EDT
[#6]
You can use a punch or nail set to open up case mouths that are severely dinged (if you cant run a decapping stem through it).  

Dryflash3 should be along shortly with pictures and a much better explanation.
1/30/2011 7:05:23 PM EDT
[#7]


A tapered punch is what you need.



Dented case necks can all be fixed, some batches of brass are like that.

Cases in the pic got the tapered punch treatment, soaked in Lemishine, tumbled, lubed, sized. lube tumbled off, primer pockets swaged, trimmed and loaded.

1/31/2011 6:21:44 AM EDT
[#8]
This is exactly the kind of info I was hoping to get.  Thanks
1/31/2011 7:14:21 AM EDT
[#9]
I second the taper punch treatment.  I used to have a tiny screwdriver with a tapered handle, and it worked just like a taper punch.
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