Okay, smart guy comment aside;
I've fired both types of rounds, .223 in semi-auto and .223 in a bolt gun, less felt recoil in the .223 semi than in the .223 bolt gun.
But .223 felt recoil was less than 7.62x39 in both Russian and Yugoslavian SKS, the SKS are heavier than my semi .223 and the .223 bolt gun I shot..
Honestly, both are not bad at all, my friend had his 11 year old son shooting his Chinese SKS without any problems, he was a lanky maybe 80lbs kid...