I have been testing a new CZ 223 with the Kevlar stock and 1-9 twist. I have tried 335, 4198, Benchmark and 2200 powder. The bedding is fine, and the only load that shoots bug holes is the 40 gr. Hornet Sierra bullet. The rest will be 3/4" which includes the 40 vmax, 50 speers and 55 sierras.
I am satisfied with the 40's but think how ironic it is that the 1-9 shoots best with the 40 Sierra bullets. My buddy has a Ruger Varmint with 1-12 and it shoots bug holes with 55 gr. bullets.
Fred
