ice tea,

I have two 1:9 twist .223s, the 12 FV Savage and an old CZ 527.
Both shoot 77 grain SMK and TMK bullets as accurately as the 69s.
Both the 77gr and 69 grain match bullets out shoot all the 55 grain bullets I've tried although Berger 55g # 22410s are the only 55s that come close to shooting as accurately.

Model 10 Law Enforcement and Varmint models have the accu-triggers that adjust down to 1.5 lbs. The normal hunting models don't. That is why the 12 FV has a Varmint trigger that goes down to 1.5 lbs.
Surprisingly