I'm not that old, but started in my mid 20's when I started building rifles. I still shoot all of these but the 6.5-06. I usually get a kick out of something different.
-6mm-06 imp (several)
-6.5-280 Imp
-280 Imp
-Variant of a blown out beltless 308 Norma of my own doing
-22-6mm
-6.5-06
