Do tell about your 243AI,sounds like a Good 'Un. Laffin'!
Never said it were an AI, pay attention Mr ADHD.
It is a stock Ruger M77 SS carbine .243 plain vanilla. I load strictly 100-105's for it now and have thrown 65 V-max's before for fun. Steady diet chuck full of Varget.
I also have a matching .223 that I feed everything from 35 Gr V-max/bluedot for bunnies, squirrels and trap line duties to 62 Gr bonded LE loads that hammer the chit out of deer.
Both OEM with a little trigger tuning. Both Sub MOA with favorite loads. Can't figure how I keep winning the OEM lotto while other insist on after market fancy boy toys painted fox pecker pink and bug chit green. Go figure.