I voted to restrict calibers kinda backwards from what was intended. I buy guns which can use a variety of ammo, or at a minimum a wide variety of power ranges. This by itself defines me as a wheel gun guy and a TC contender fan to which both are correct. I currently own GUNS chambered in 22lr, 22 mag, 32swl, 357mag, 44 mag, 9mm, and 7-30 waters....I have ammunition on hand for the 22lr in the form of 22lr and 22 short, the 22 mag is convertible to 22lr, the 32swl guns bounce around between 32swl, 32sw, and the occasional 32acp. The 357 shoots everything from powder puff loads with 115gr 9mm bullets in 38spl cases to some ruger only 180 gr thumpers in 357 cases...and everything in between. The 44mag guns have 44spl, 44mag, and a round I refer to with a term indicative of an oedipus complex in which primers are starting to flow and case life is a concern. All rounds marked appropriately, with the MF rounds and 180gr 357s being their own distinct bullet designs as opposed to my other loads. The 7-30 has only 1 ammo type, but it has a 44 barrel next to it, and it has a reserved seat for a .357 max beside it. Never once have I worried about finding ammunition, even when I owned only 4 handguns because my ammo supply is far from restricted, and that was before I started reloading handgun ammo.