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    SKS gurus

    Today while sighting in my night vision on my SKS I had a lil oops. Hard to explain and no pictures will really help.

    Leading up the "oops"

    Had purchased some ammo and didnt pay attention since theres a limit had to purchase one box one day and the other box the next day...but I ended up with 2 different grain boxes.

    The "oops"...Put first magazine in and fired 5 or 6 shots flawlessly. My buddy wanted to shoot and fired 3 or 4 shots flawlessly. After he was done he laid the rifle on its side almost upside down before I could get to it (ill get to this in a moment). I then fired 1 shot and then on the second POOF!!! I cant say that it didnt sound like it actually fired but it definately didnt fire correctly but when it went POOF it literally ejected smoke (probaly gun powder) out the ejection port and the slide cover. I ejected the round manually and examine the breech and reloaded again. Pulled trigger but nothing but click. Ejected the round and there was a mark on the primer where the pin had struck and indented. I ejected and pulled again...the same thing.

    I figured I had a bad box of ammo and loaded with the other ammo which is when I noticed that they were 2 different grains...not gonna say this is the problem cause both fired. But after loaded the next box I had a couple misfires and then it fed and fired flawlessly the rest of the second box and the rest of the first box.

    My thoughts: 1. I may have lubricated the slide area too much and when my buddy laid the rifle down it gummed up with lubricant. 2. The initial POOF i had gummed up the area with powder which soon cleared up 3. None of the above because i took the slide out and cleaned it and the firing up nicely and purchased another box of 7.62 at the range and it missed fired once again.

    Your thoughts: ???

    #2
    It's not clear to me what you ejected? Did the bullet leave the cartidge? Did you check the barrel for a stuck bullet or other obstruction?

    LWD

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      #3
      The "poof" fired a bullet...but not normally...I cleared the breach (ejected cartridge, examined cartridged; no bullet in cartridge, checked breach area for bullet and barrel for bullet and nothing) then after reloading was when the rest just didnt fire at all...only left indents on the primer like the firing pin had struck it. But fired normally after I reloaded with the other box of ammo.

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        #4
        Oh...and they were all the same brand ammo...3 boxes of Tul ammo the higher grain was 125 and if I remember correctly the lower grain was 85grain???

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          #5
          About how wet was it?
          Is this a new gun, first time to the range?

          Thoughts:::
          It was pretty wet and smoked it off.
          It had a bad load and smoked piston a little.
          You didnt get all the cosmoline out of the piston tube and it finally got hot enough to smoke it out.
          3 of the things I could think of.

          Comment


            #6
            Did you try to refire any of the cartridges that misfired? To much oil in your bolt carrier will slow down the firing pin. It will still dimple the primer but not strike it hard enough to set it off.

            Comment


              #7
              Originally posted by Txfirerescue View Post
              Oh...and they were all the same brand ammo...3 boxes of Tul ammo the higher grain was 125 and if I remember correctly the lower grain was 85grain???
              Tul ammo is junk

              Comment


                #8
                Originally posted by rcjunky007 View Post
                Did you try to refire any of the cartridges that misfired? To much oil in your bolt carrier will slow down the firing pin. It will still dimple the primer but not strike it hard enough to set it off.
                Did not try to refire...but what your describing is right on the money

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                  #9
                  Originally posted by JSF View Post
                  Tul ammo is junk
                  agreed, but cant find much else of anything

                  Comment


                    #10
                    Originally posted by Jp. View Post
                    About how wet was it?
                    Is this a new gun, first time to the range?

                    Thoughts:::
                    It was pretty wet and smoked it off.
                    It had a bad load and smoked piston a little.
                    You didnt get all the cosmoline out of the piston tube and it finally got hot enough to smoke it out.
                    3 of the things I could think of.
                    Didnt seem too wet after the incident...but there was enough to run down the side of the rifle after it laid upside down so Im thinking it was sitting somewhere I couldnt see and when it was laid over it ran out into the slide or firing pin.

                    Not new gun and has fired flawlessly before with none of these issues.

                    Comment


                      #11
                      disassemble bolt, clean and dry firing pin. when reassambled firing pin should rattle freely when you shake bolt. dry up all lube from receiver,mag well, bolt carrier and cover(SKS will cycle completely dry, just need very light coating of lube to prevent rust) Test fire and if you still have same problem, try different brand of ammo(if you can find any right now)

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                        #12
                        Thank you..I will give that a shot

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                          #13
                          This may sound stupid but are you sure the ammo was ALL 7.62x39? The tula website only shows one bullet weight for 7.62x39 ( the standard 122gr ) Maybe you actually grabbed one box of 7.62x39 and one box of 5.45x39? The cartridge looks the same except for bullet diameter. Case length, head diameter etc is the same. If a 5.45x39 is fired in a 7.62x39 rifle the pressure wont build up enough to seal the chamber and may not sound/feel right.

                          Comment


                            #14
                            It was for sure both 7.62....that's how I messed up the gr...I didn't think/know there were multiple grains by Tul in the 7.62 but sure enough when I re-examined the ammo they were different grains

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                              #15
                              Officially convinced its the Tul Ammo...fired 40 Winchester rounds flawlessly put Tul annoying in and 14 out of 20 were duds

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