I had a K-6 on a Rem 788 in .222 back before I knew what I was doing. Oddly enough I killed stuff just fine with it back in the 70's. Now with all I know it probably won't work..
Yeah, it's amazing how we killed stuff with all that crude equipment.
I had a Savage 340 in .222 with a 3/4" J-4 Weaver, not as nice as your combo. I killed all sorts of stuff, even whacked crows at 200 yds. No way would that rig kill a 200 yd. crow today...
I did upgrade to a Rem 700 in .222 with a K-10 Weaver and moved that Savage down the road. Actually a good friend ended up with it and he didn't know it wouldn't kill stuff, did pretty well with it...
DF