Actually SKS mags were designed for a fixed 10 round stripper clip fed magazine
http://www.buymilitaria.com/sks_htm_fil ... gazine.htm
http://www.buymilitaria.com/sks_htm_fil ... sories.htm
I too have a Norinko SKS, I had a 30 round magazine like that and it was horrible in its effectiveness, I replaced with the non-removable 10 round fixed magazine and have gotten 0 failures since, the non-removable 10 rounder actually is removable..it just locks in place with the trigger guard and would require disassembly to pull the mag
Trying to turn a SKS into a high capacity AK spinoff just ain't worth the hassle of loss of reliability you get with the 10 round fixed magazine..that the SKS was designed to be fired using, its stripper clip fed, NOT removable magazine fed
P.S. Norinko is one of the "best" of the SKS heap, they go for around $250-300 so don't get rid of it...dump that lousy removable mag, then get a fixed and you will be amazed at how effective the SKS can and should be!
Oh...here is mine
