What is the deal with corrosive ammo?
What makes ammo “corrosive”? Generally speaking, primers are the problem. When corrosive ammunition is fired, the ignited primers leave a residue of corrosive salts. Typically these primers contain potassium chlorate, or sodium petrochlorate which, when burned, change into potassium chloride or sodium chloride.
Why are corrosive primers used?
The FA-70 Primer is corrosive and here’s why: Once fired, potassium chlorate or sodium perchlorate primers will deposit corrosive salts into the barrel and internals of the firearm. These corrosive salts are potassium chloride and sodium chloride.
What does corrosive ammo do to a barrel?
When the Primer is fired, Corrosive Salts are deposited all inside the Barrel of the Weapon and anywhere Powder, Carbon, Copper Residue travels.
What ammo is corrosive ammo?
When people think of corrosive ammo, they often think of military surplus ammo and firearms like the AK, SKS, Mosin-Nagant, or Mauser. While corrosive ammo includes Russian calibers like 7.62x39mm, 5.45x39mm, 7.62x54R, you can also find it in U.S. military calibers like . 45 or 5.56 as well.
When did the US military stop using corrosive ammo?
Civilian ammunition manufacturers began offering non-corrosive ammunition during the 1920s. However, most military ammunition continued to use corrosive priming mixtures. The majority of U.S. military cartridge contractors eventually made the transition to non-corrosive primers during the 1950s.
Is Boxer primer corrosive?
Modern Boxer primers are almost always non-corrosive and non-mercuric.
What does boxer primed ammo mean?
What Is Boxer-Primed Ammo? The weapon’s firing pin strikes the base of the primer cup, which causes the primer mixture to be crushed against the anvil. This creates a flash that goes through the flash hole, igniting the powder in the cartridge.
Is Chinese surplus ammo corrosive?
The ammo is packed in silver 20 round boxes marked NORINCO China North Industries Lead core bullet steel case, NON-CORROSIVE. No stripper clips.
Is Sellier and Bellot ammo corrosive?
It is non-corrosive.
How long does it take a bullet to corrode?
Corrosive ammo will begin to damage the bore within 24 hours if left unchecked. In very dry climates where humidity is less than 20%, it may take longer. The culprit are the compounds used in the primers of the ammunition. These contain corrosive salts that embed themselves in the metal pores of the barrel.
Is black powder corrosive?
Yes, in time it will but the residue is slower to rust SS than regular steel. The rule is to always clean a black powder firearm on the day it was shot.”
Do you have to clean your gun every time you shoot it?
Clean Your Oft-Used Guns After Every Use
As a general rule, it’s a good idea to clean your gun after every trip to the shooting range. Defensive firearms that don’t get used very frequently should also be cleaned on occasion. Try to give them a deep clean and inspection about once a month.
Is Surplus ammo safe?
Military surplus ammo is generally good to go. But there are always caveats. Some ammo, especially the older stuff use corrosive primers. It will cause damage to the gun if you do not clean it.
Does steel cased ammo damage your gun?
While I don’t generally recommend steel cased ammo, it’s not going to hurt your rifle in limited amounts. If used exclusively however it will reduce the barrel life by about 4,000-5,000 rounds. Most if not all of this ammo uses a copper coated steel jacketed “bi-metal” bullet which increases wear on the barrel.