From what I can gather, the CZ 455 is supposed to be capable of switching barrels between 22 LR, 17 HMR, 17 HM2 and 22 WMR. Does the action and magazine well have enough space in the 22 model to accommodate the longer 17 HMR and 22 WMR? If so, how does this effect feeding, as to the best of my knowledge, the 17 HMR has wider case, compared to the 22 LR? If I want to ultimately switch barrels (and I do), should I by a 455 in 17 HMR or 22 WMR and then buy the 22 LR barrel so that the mag well can accommodate the shorter cartridge, rater than the mag well being too short if switching from the 22 LR to the 17 HMR? Thanks for the answers gents, I do appreciate it.