James, my CM111 was not picky with other well made pellets of the day such as Baracudas and F&TT, the last shot at an adjusted slightly lower power to keep mv in hand. I had the hand pump which allowed me to fiddle with the air spring pressure via the ?Shroeder valve.
There is much positive I could write about that brilliant rifle - but on the negative side, it could destroy cheap scopes and even the rubber bushings in the Dampa Mounts (they can be replaced); A shoulder can suffer too from cocking the rifle many times in a cramped position. But when held as it liked to be and shot with disciplined follow-through it was amazing.
More later perhaps if there is further interest. ... Very best regards, Harry.