Have been a sucker for the nice CF 22s for some time, got a few in various configurations, most I built myself. The cartridges, 22H, 218 Bee, 222, 222R, 223, 22-250, 22-250 AI, 225 WM, 220 Swift.
The Hornet is a little quiet gun, fun to shoot in the #3, The Bee is a surprising little cartridge with the 35gr and 4227, it can easily run 3,500 fps and dust fair sized critters, makes a very good single shot. The 222 is a classic in the Vixen great first rifle for a youngster in a shooting house. The 222R in the Martini Cadet is one of the better Cadet conversion, the brass is Aussie but reloads with a 38 Spl shell holder and 222 dies. The 223 can be all things to the mid size case .224 cartridge guns, from 7-14 twist it can shoot most any weight 22 bullet on the market, just change gun by the rifling twist. The 22-250 is the first step in the reach out and touch them size. The 22-250 AI in a fast twist is a very long range, very accurate cartridge, with no real recoil. The 75 SMK will duplicate the 50 BMG trajectory and with a cam adjustable scope you can use the 50’s cam to be right on the money. Been there done that. The 225 WM is the largest diameter case the Martini Cadet can be safely chambered to, It gives a little Martini quite a bit more authority, duplicating the 22-250 in a rimmed case. The 220 Swift is older but is still a stellar performer, you just need to keep the velocity within reason unless you need practice re-barreling the gun. The selection gives me 2k to 5k and can red mist most anything within reason, as wished.