Pennsylvania Firearm Owners Association
Results 1 to 4 of 4
  1. #1
    Join Date
    Sep 2009
    Altoona, Pennsylvania
    (Blair County)
    Rep Power

    Default What the heck is rimfire primer made out of?

    I've been wondering for years, and I can't find anything online. Does anyone know the chemical compound that is that lime green explody stuff we know as rimfire priming compound?

  2. #2
    Join Date
    Apr 2007
    Pittsburgh, Pennsylvania
    (Allegheny County)
    Rep Power

    Default Re: What the heck is rimfire primer made out of?

    From Wikipedia:

    "First used as a priming composition in small copper caps after the 1830s, mercury fulminate quickly replaced flints as a means to ignite black powder charges in muzzle loading firearms. Later, during the late 19th century and most of the 20th century, mercury fulminate or potassium chlorate became widely used in primers for self-contained rifle and pistol ammunition. Mercury fulminate has the distinct advantage over potassium chlorate of being non-corrosive, but it is known to weaken with time. Today, mercury fulminate has been replaced in primers by more efficient chemical substances. Those are non-corrosive, less toxic and more stable over time: lead azide, lead styphnate and tetrazene derivatives. In addition, none of the compounds which replace Hg(II) fulminate require mercury for their manufacture, supplies of which can be unreliable in wartime."
    Toujours prÍt

  3. #3
    Join Date
    Dec 2009
    State College, Pennsylvania
    (Centre County)
    Rep Power

    Default Re: What the heck is rimfire primer made out of?

    Soylent green......

    (IT"S PEOPLE!!!)
    I don't watch shark week. Sharks watch FLICK week.

  4. #4
    Join Date
    Jul 2009
    Plymouth Meeting, Pennsylvania
    (Montgomery County)
    Rep Power

    Default Re: What the heck is rimfire primer made out of?

    Powdered glass is also added to rimfire primers to insure better reaction to the energy imparted by the firing pin. This is another reason to only shoot at indoor ranges with excellent ventilation. Silicosis is a horrible condition that comes from inhaling silica/glass dust.
    Join the groups protecting your rights from the fools trying to take them from you!

Similar Threads

  1. hand primer vs. turrent press primer
    By jachrist in forum Ammunition & Reloading
    Replies: 19
    Last Post: February 20th, 2011, 09:49 AM
  2. So Where The Heck Is Everyone?
    By Smalls in forum Franklin
    Replies: 8
    Last Post: June 16th, 2010, 09:00 PM
  3. 357 small pistol primer......primer
    By brian in forum Ammunition & Reloading
    Replies: 7
    Last Post: February 24th, 2010, 11:13 AM
  4. Replies: 2
    Last Post: July 2nd, 2009, 02:54 PM
  5. What in the Heck is this?
    By sgser in forum General
    Replies: 2
    Last Post: February 25th, 2008, 01:06 PM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Local gun shops | Local shooting ranges | Philadelphia Shooting Ranges | Philadelphia Gun Shops | Pittsburgh Shooting Ranges | Pittsburgh Gun Shops