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Deactivating Live Primers...

Frostbite Slim

Gravity Tester
Full Member
Minuteman
Aug 29, 2010
70
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I just got 500 <span style="font-weight: bold">free</span> once-fired Lake City '05 7.62 cases. The only problem is that they're <span style="font-weight: bold">all</span> primed. So now I have to go to the range and fire 500 live primers. If they don't chamber, then what do I do? I don't know anything about how they were sized or even if they <span style="font-weight: bold">were</span> resized.
 
Re: Deactivating Live Primers...

Take the decapping pin out of your sizer die or run the expander ball assy up away from the bottom of the case, then lube & size the cases, load them, and shoot them.

OR, if for some reason you don't want to load cartridges with those primers, just deprime them <span style="font-style: italic"><span style="font-weight: bold">carefully</span></span>. PUSH them out, don't slam them out. When you get 10 or so in your primer catcher, empty it. 10 primers are less dangerous than 100. Be careful, wear safety glasses, heavy gloves, etc.

Or just send the cases to me and I'll dispose of them for you
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Re: Deactivating Live Primers...

You can just run them through a full length sizing die. They will get sized and deprimed just like normal. Don't worry about a discharge -- if one of the primers does happen to go off (not likely) then the primer will push out of the shell holder just like normal.

Look at the bright side -- if they're already primed, then you don't have to deal with swaging out the factory crimp. There's one step already down.

*EDIT* You could always just load 'em light and fire with the existing primers. If you're going for accuracy, you're going to want fire-formed brass anyway. The brass doesn't know what primer is in the back end.
 
Re: Deactivating Live Primers...

I forgot to measure them, I am going to go do that now, the necks are really tight, so I am going to see if they will chamber. If they do, then I'll just load and fire them. Thanks for the help.

EDIT: They were bagged in groups of 100 each, I grabbed 3 of them from each bag and measured them. They were only a couple of thousandths off of my prepped brass, I suspect that they'll work out just fine for my needs. Thanks again!
 
Re: Deactivating Live Primers...

Try to seat one. If it seats with relative ease but holds the bullet firmly, then just load them up.

Or, remove decapping pin and just run the expander ball thru all of them and then continue on from there.

Or, decap them slowly (this works fine imo, in fact i did 50 cases like this yesterday)

Or, dump the cases in water and decap them.
 
Re: Deactivating Live Primers...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: uafgrad</div><div class="ubbcode-body">Put WD40 in them
</div></div>

That's what I did last time I had to do it.

As someone else said, the other option is to pull the decapper from your FL die and FL re-size them, which is what I'd do in this case.
 
Re: Deactivating Live Primers...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Aerodynamic</div><div class="ubbcode-body"> If they don't chamber, then what do I do? I don't know anything about how they were sized or even if they <span style="font-weight: bold">were</span> resized. </div></div>

Hope for the best-that they were sized to spec, not someone's chamber.

If primed hopefully they were sized to standard SAAMI specs. If they will drop in a 308 case gauge (get one of you don't have one) they will be fine in 95% of rifles.

If they dont fit resized on the small side with the decapping pin out (use imperial wax on the outside and wipe off). I say the small side becasue if you are used to commercial brass with your die set up for your rifle adn run LC its usually stiffer and will spring back more.

My money says they'll be fine.