I have several SKS rifles. I took the bolt down after removing firing pin and cleaned out the cosmo. No slam fires here. you have to pull that pin to install spring so why not clean it out? Not sure about deer rifle at 100 yards, Its the shooter with iron sights that makes the difference there.
Over 1K rounds from my first SKS and never a feed,jam or hicckkup.
Over 1K rounds from my first SKS and never a feed,jam or hicckkup.