OK. Thanks. I once looked at building an AR-10 in .308
Gunsmith friend of mine talked me out of it.
I knew that the 7.62x39 was possible in AR format. Did not know the details on the magazine dimensions.
Friend of mine here on FR tried to interest me in the 6.5 Grindel in the AR-15 frame. I looked at how difficult getting brass was and decided not to attempt that.
I did buy a nice .308 bolt action rifle.
The only semi auto rifle I own is an SKS, that I bought in a box at a garage sale. Got it back together and working and put aside some ammo and reloading capability. Have not shot it much. It is honestly not a bad rifle. It is scoped and it is pretty heavy for it’s size.
Sell the SKS and buy an AR in the 7.63x39 platform. The CMMG Mk47 Mutant is a good platform.