CVA .45 twist rate
#3

Put a tight patch on the jag and run it down the bore. Wrap some masking tape around the ramrod at the muzzle and mark a reference point on the tape. Pull the rod out slowly allowing it to rotate. When you get where your reference mark is 180* put another piece of tape on the rod at the muzzle. Measure the distance and multiply x2 and you'll have your twist.
#4