A gritty-schitty CZ 223 twisted 1-12",is a huge bet to lose and an easy Goat [bleep] to pass upon...from any/all angles.
Pass the Montucky 223 and hold the fluff.
Hint.
Dude, i have no idea what you just said, but if you believe carnal relations with a goat from all angles is easy i would kindly suggest you have not fncked enough goats. Which surprises me.
FWIW, the new 53gr V-max makes 1:12 my preferred twist in a straight .223 again. You are going to have to go up to a 70gr bullet to get a significant improvement in BC, and the small improvement in BC can't compensate for the 500fps you have lost - at least not at any range a .223 can be relied upon to kill at.
CZ527, Lapua brass, 53gr V-max and about 25gr of Benchmark - that is the answer to your question.