^
The problem is people assume the SKS they just bought is set up and ready to go, like a Remington 700 or something like that.
It does not work that way in the real world.
After sitting around in depots for (?) years, or decades, the stocks are dried out. The bedding has to be sorted out and the trigger has to be sorted out. I have a fine front post for my SKS, if the bedding and trigger are sorted out, the coarse front post might be superior for bush whacking - ymmv.
Of course I have never taken a deer or any other big game in my life, all my observations are from range use.