I assumed that between reloading .308 for Ruger or .311 for SKS/AK ammo, Lee Precision went with .311----what, 100 million rifles versus 10,000. That and frankly, cheap dies and cheap rifles kinda going together.
I concede that handloading for the SKS is probably a fool's errand. Stepping back from it, I see what you mean. By my same logic, there are probably 100 people with .308 bullets on the shelf versus 1 guy with .311 bullets on the shelf for his Enfield or MN.
The irony is that since I have 25 brass sized to .308 and primed (doesn't look like the decapper is removable on Lee RGB expander) that I will try some 150 grain .308 on the offhand chance that they group.