I have 3 M1911-style pistols, two of them with .22 Conversion kits (one Ciener and one Colt Service Ace.)
Two .22s (a Ruger MKII and a Colt Officer's Model Target) -- but 4 if you could the M1911s with conversion kits.
Two .357s -- a Colt M357 and a Colt SAA.
Two .45 Colts -- a Colt New Service, and a Ruger Blackhawk
I also have 5 .30-06s -- a Ruger MKI, a pre-'64 Winchester Model 70, two )3A3s and a Garand.
I have 6 .22 rifles.