Sealing primers??


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dstark
December 31, 2007, 04:33 PM
Just wondering if anyone seals their primers, I've used clear nail polish and primer sealer but they both seem to make more of a mess than anything. Its hard to get a thin enough layer not to leave any excess, and any left on the brass doesn't come of in the tumbler next go around. It's probably not worth it but figured I would give it a try anyhow.

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alsaqr
December 31, 2007, 04:36 PM
It is not worth the trouble.

PTK
December 31, 2007, 04:40 PM
I put a small dab of any nail polish on the primer, making sure it fills the small gap around the primer and the case. I then wipe it with a rag, leaving just a small ring in the gap, sealing the primer.

It does add another step, but it takes all of 5 seconds a round, which is fine by me for cartridges I carry around. For range fodder, I don't bother sealing the primer.

herohog
December 31, 2007, 04:43 PM
Anybody used thinned lacquer?

Pumpkinheaver
December 31, 2007, 06:39 PM
I know they sell primer sealer under various brandnames, but I've never used any of it.

WESHOOT2
January 1, 2008, 10:46 AM
I have used George & Roys Primer Sealant with great success.

poe
January 1, 2008, 01:39 PM
Should you also seal around the bullet? How does nail polish work. I could possibly purloin some of that from the wifey.

ReloaderFred
January 1, 2008, 01:49 PM
In loading some 750,000 rounds or so, I've never found the need to seal either the bullets or the primers, but then I don't go surfing with ammunition in my pockets either. As a matter of fact, I don't surf. I've carried ammunition in just about every Kind of weather there is while working, and I've never had a round fail to go off when I needed it to.

Military ammunition is sealed because it may have to endure surf, mud, rain for days and days, etc. Unless you're subjecting your ammunition to these conditions on a daily basis, there is really no need to seal them.

Hope this helps.

Fred

PO2Hammer
January 1, 2008, 02:47 PM
I only seal storage ammo and hunting ammo, for plinkin, it's not worth the time.

I have had commercial pistol ammo get wet and fail to fire (blazer aluminum)

Should you also seal around the bullet? How does nail polish work. I could possibly purloin some of that from the wifey.

Nail polish is primer sealant. I don't seal the bullets, I think the bullet and the case mouth are self sealing, especially lead bullets with a crimp, I just don't see water getting by that. It works by flowing around the gap between the top of the primer and the brass and drying quickly. It stays flexible and will dissolve in laquer thinner even after it dries.

I bought the commercial stuff the first time, but when I need it again, I'll head to K-Mart and get a big cheap bottle of red fingernail polish.

It really speeds thing up and makes for a cleaner job if you have a decent small artist brush that comes to a point. I seal after the rounds are fully loaded.

rcmodel
January 1, 2008, 04:41 PM
It is a total waste of your time unless you plan on standing in a foxhole full of water in the rain for days on end.

Primers themselves are already sealed from the factory with a disk of foil and a drop of red, green, blue, etc lacquer depending on the brand. They fit the primer pocket in the case so tightly water can't get by them. Same for the bullets.

Unless the ammo is totally submerged, they won't leak.

If you have to hunt in a monsoon, put your spare ammo in a Zip-Lock bag.

http://i81.photobucket.com/albums/j219/rcmodel/KTOG/1224.gif
rcmodel

birdbustr
January 1, 2008, 04:52 PM
I've got to go with RC and the others that say there's no need to seal. I've never had a shotgun or rifle round fail to fire due to rain or even due to being dropped into water. I've hunted in some really wet situations, (ie. swamps, flooded timber, rain, sleet, snow, mud, etc.). All my rounds went boom either right then or eventually when I used them later.

If water caused a misfire I would seriously look into blown-out primer pockets in the brass or the bullet not crimped well.

PO2Hammer
January 2, 2008, 02:50 PM
Primers themselves are already sealed from the factory with a disk of foil and a drop of red, green, blue, etc lacquer depending on the brand. They fit the primer pocket in the case so tightly water can't get by them.

The foil disk has nothing to do with sealing out water. I have yet to see any color laquer attached to a primer that I've ever bought.

All it took for some Blazer ammo I had to go bad was to get wet, and stay wet for a couple days. They were not submerged. Granted, being aluminum cased ammo may have been a contributing factor.
50% of the primers failed to ignite. Luckily the powder stayed dry and there were no squibs.

Just because most shooters haven't had ammo go bad from water, doesn't mean it doesn't happen.

If you look at any military, premium hunting or self defense ammo, you'll see it's sealed at the factory. There is a reason for that.

snuffy
January 2, 2008, 03:47 PM
The foil disk has nothing to do with sealing out water. I have yet to see any color lacquer attached to a primer that I've ever bought.

Oh? Then the next time you go to load, take a close look at the TOP of the primer,,, by the anvil, you'll see some color there. It's the lacquer sealant that rcmodel alluded to.

GaryL
January 2, 2008, 04:06 PM
I use nail polish (thinned slightly) for hunting ammo. That's basically all the manufacturers use, unless it's for special applications - then they do something a little different. The nail polish will block anything that is likely to wick in past the primer (oil or water based).

Anyone who has ever experienced a hang fire with older military ammo is more likely to feel the need to seal ammo that may be around for a while.

If you want to kill primers, soak them in oil. That's what is recommended. The factories handle and store the priming compound wet to prevent issues. When the primers dry, they're ready to go.

Kimber1911_06238
January 2, 2008, 04:59 PM
I don't bother, never had a problem, even with ammo that has been stored and carried for over a year. My ammo generally doesn't last longer than that.

gandog56
January 2, 2008, 05:24 PM
Never used it, and never had a primer fail because I didn't.

Cosmoline
January 2, 2008, 05:27 PM
It is not worth the trouble.

Oh, yes it is. I neglected to seal the primers on some bear load 54R's a few years ago and they tagged along with me in some adventures. Went to fire one last month at the range and it was a squib. The primer went off but the powder had gotten wet and gone bad, so it did not ignite. The powder wad and bullet lodged in the throat. I checked it visually because there was no recoil, but if I hadn't it would have been a kaboom for the record books with two massive charges of IMR going off at once.

PTK
January 3, 2008, 05:19 AM
Cosmoline,

Stop adding real life experience to this! The armchair commandos want to be able to say sealing serious use ammo isn't needed, and you're ruining it.

Kimber1911_06238
January 3, 2008, 09:09 AM
lol PTK.

Just to be fair, Cosmoline does live in Alaska. That's kinda like a different planet. :)

Down South
January 3, 2008, 12:43 PM
I've been reloading for 37 years and have never sealed a primer or bullet. Nor have I ever had a problem and I've been in all types of weather with my reloads.

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