I have a sks that was a online buy when it arrived it was rusted bad lots of pits!! the pic is from after I tried tried to clean it up . not the best pics 
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I have a sks that was a online buy when it arrived it was rusted bad lots of pits!! the pic is from after I tried tried to clean it up . not the best pics
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I see, you have the perfect exemple that even a chrome bore can rust if neglected. Of course when the rust and pitting are well installed, not much to do for it.ITs a chinese sks . i shoot it once and it blew the primers out of cz m43 ammo . its rusted not dirty. its now a parts gun for a .22 sks build we are working on !!
We used AK-74 and AKS-74U in 5.45x39mm/RPK amd DshK mashinguns.For shooting regular soldier in artillery use around 200 bullet/yr.Infantry probably a lot more.i was corporal and they have policy to teach us to use any of weapon in regiment-from makarov and AK to DshK and RPG/No SKS .My father was working in grain elevator and they have guard armed with SKS(end of 70-early 80)
i am served in Red Army for 2yrs and never (NEVER)was told to do any special cleaning for AK-just regular gun oil and brushes.And my AK was shiny and clean all times(or my butt will be kicked hard by corporal )/Lots of elbow grease))



























