I have a Savage 11/111 in a 30/06. I had been loading two different rounds my self and was having good results. I bought some cheap factory loads from Brand-F and they were similar to my own. I bought some Trophy Grade from Brand-N and it was not as good. Months later or last week I put one of the Brand-N cartridges in my comparator and it was in the lands by 0.020. Brand-N OAL was 3.330
As I continue to read up and develop my own loading skills, I am trying to fully understand all of the "cause and effect". Now instead of checking my loads OAL, I am check them with my comparator. I am guessing that is the measurement that is most critical for consistency?