If I'm shooting Bullseye, (the reason to go to Camp Perry), I would be loading a much softer shooting load, and find the one that is most accurate. Needs to go into 2" at 50 yards for that game. Power isn't a necessity. I have developed my best load 20 years ago, and just re-verified it last summer again by ransom rest. 4.3 gr. 231 behind 200 gr. (H&G) cast bullet, with Fed primers. This groups into 1.5" at 25 yards from my Series 70 Gold Cup with Kart barrel. I use a 12 lb. recoil spring, and the main spring is 19 lb with the trigger set to break at 4 lbs. Recoil is very mild, and allows faster recovery for aiming in the timed and rapid fire stages.