The Firing Line Forums - View Single Post - New NRA explanation of .223 vs 5.56, examples?

thallub · September 23, 2018, 06:27 PM

At the time my CZ527 was purchased only the Varmint model came with 1/9" twist rate. Mine is 1/12" twist.

The M855 bullets don't keyhole at 125 yards. They just make awful groups.

September 23, 2018, 06:27 PM	#13
thallub Senior Member Join Date: November 20, 2007 Location: South Western OK Posts: 3,112	At the time my CZ527 was purchased only the Varmint model came with 1/9" twist rate. Mine is 1/12" twist. The M855 bullets don't keyhole at 125 yards. They just make awful groups.