CQB is great chance to try out various guns in your collection. I have posted credible scores with Ar-15s (5 different models) CZ858 in 223 and 7.62 (3 different barrel lengths - two with peep sights and one with a SPARC), an SKS HiPoint in both 9mm and 40S&W, an SKS, loading with stripper clips and a M1 Carbine.
I have lost count of how many different pistols I have tried.
I would like to try a revolver and a Lee Enfield. But I would ask the organizer to let me fill both to capacity, to reduce the reloading chores. A Lee Enfield could post a decent score, I think, if I had 10 rounds in it. Same thing with a revolver, shooting double action.