That certainly validates my experiences. One of my nest 375 H&H loads uses 76gr of H-414 and I get best results when using F-215 primers. In turn when I load 74gr of RL-15 I get better results with F-210s than with 215s...
Jorge - I'm being polite and not critical.
IMO that does not validate your experience BECAUSE that was CCI primers. You are using Federal primers.
IMO that's apples -- oranges.
Just my thots.