Salvaged Cheddite primers

[Double Lab]

I read somewhere that those flash holes were sealed for use with ball powders and fine grained powders. Don't know why that would matter, I could be wrong. Frequently am.

[Bill Murphy]

Apparently, there is some danger in ball powder (and maybe others) getting into the hole and causing some kind of pressure rise or detonation. I have no idea where we can read about this phenomenon. Of course, free primers trump all other supposed dangers.

[Bruce P Bruner]

Originally Posted by Bill Murphy

Apparently, there is some danger in ball powder (and maybe others) getting into the hole and causing some kind of pressure rise or detonation. I have no idea where we can read about this phenomenon.

A method I have used in BPCR is placing a strip of newspaper over the primer hole before pressing in the primer, thus eliminating pressure & velocity variations due to unknown amounts of powder entering the open ended primer.

[neil steven]

Cheddite market 3 different primers - different brissance... and the lacquer colour usually indicates which strength.
Black = CX2000 ~= Win 209
Red = CX 50 = mildest, as recommended for .410 gauge loads

CX1000 = I have not seen them, so colour? but recommended for 16G and perhaps 20G.

Look on the website.

[Stan Hillis]

Originally Posted by neil steven

Cheddite market 3 different primers - different brissance... and the lacquer colour usually indicates which strength.
Black = CX2000 ~= Win 209
Red = CX 50 = mildest, as recommended for .410 gauge loads

CX1000 = I have not seen them, so colour? but recommended for 16G and perhaps 20G.

Look on the website.

Thanks for that information, Neil. Mine have the black coating. I've used them for many years as a direct replacement for the WW209 with no issues, except being a tiny bit harder to seat because of the slightly larger O.D.

Good information from all, thank you.