News Ticker


Primer Cups

primer cups
Primer Cups

Primer Cups

Primer Cup - A small metal cup, into which the primer mixture
is loaded.

Most primer cups are made of 70/30 cartridge brass. The metal of the
cup must be able to resist the pressure developed when the priming
mixture burns or primer leaks pierced primers and other irregularities
will result. At the same time, the thickness of the primer cup must
be kept within certain limits or the primer will be lacking in

It is in the interest of the manufacturers to prevent primer cups from
becoming too hard.

Primer cups are usually made of cartridge bass, although copper,
nickel-plated copper or brass, copper alloy and zinc-coated steel cups
are also encountered.

Most metallic primer cups are made of cartridge brass but steel may
also be used.

Primer cups are produced on a cupping press.

After cupping, the parts are tumbled to remove sharp edges at the
open end of the cups. This smooths the cup, making insertion in
cartridge cases easier. Most commercial primer cups are nickel-plated
for corrosion resistance.

Share This:


I'm Bigwas. I have a degree in Criminology and Law.English is not my major. I'm a web developer by day and a blogger by night. I hope you learn something from my blog.

No Comment to " Primer Cups "

Post Any Question Or Correction

  • To add an Emoticons Show Icons
  • To add code Use [pre]code here[/pre]
  • To add an Image Use [img]IMAGE-URL-HERE[/img]
  • To add Youtube video just paste a video link like