Home Forums Hunting & Shooting AR and Tactical Rifles Any body tried 80 grainers with a bushmaster varminter?

I've loaded Berger VLD 80's to mag length and ran them with TAC out of a 223 1:8. They shot but not too good. Around 1.75-2" for 5 at 100. I want to try them out of my 1:7 after I get 77's worked up. I don't seem to have a lot of luck with TAC. Benchmark seems to group better in my guns. I haven't tried Benchmark with 80's yet, but I will.