I have never been able to tune accuracy with a primer except in larger hunting style cases sometimes showing better accuracy with magnum primers. Prime example I hunt a lot with a .280. and H4831 and mag primers seem to be the way to go. But I have tuned ES on all 3 of my bench guns by simply trying different primers. I was a BR4 guy for 20 plus years. Now I use 205m which I had never used or tried. Live, listen, experiment, and learn.Do you think you can tune to the primer ?
Right now I would use what ever I can get. Tried both.Just my two cents. Tommy Mc. Did not see one as the real winner.Which do you all prefer for primers the fed 205m or CCI BR4?
Thanks