Are primers manufacturered with a sealant?


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gamestalker
September 15, 2011, 11:26 PM
I've noticed for a number of years that at least on CCI primers there seems to be a red residue present around the edges of the primer pocket after being fired. I also recall a long time ago one of my reloading buddies made mention that Winchester also makes them with a sealing element of sort. Does anyone know if there is any truth to this, or are my old eyes playing tricks on me?

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PO2Hammer
September 15, 2011, 11:53 PM
No the primers don't have a built in seal, the sealant is applied after the primer is seated. Military and premium self defense ammo is usually sealed.

Primers do have a foil disk inside to protect the priming compound, but it's not an external seal.

m33p0n3
September 18, 2011, 06:19 PM
Some manufacturers add a color onto the anvil that identifies the type of primer. Maybe it's this coloring making it's way out after firing?

Walkalong
September 18, 2011, 07:48 PM
They seal the priming compound, which is why it is so hard to kill primers, but it doesn't bleed out and show. The primers that are sealed for moisture are done after seating, and, of course, can be seen before firing.

rcmodel
September 18, 2011, 09:16 PM
Primers are sealed when they are made with a foil disk over the primer compound, and a drop of lacquer on top of that to seal the foil disk & keep the anvil in place until the primer is seated.

Any colored lacquer found outside the primer pocket was put there to seal the primer before or after it was seated.

rc

gamestalker
September 19, 2011, 05:50 PM
Never mind, it's my poor vision seeing the reflection of the brass on the outer edges of the primer. My Son took a look and laughed because my eyes are so bad.

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