For example, when was the last time a comparable number of firearms was produced in a single caliber in such a short time, and how long was it before ammo was no longer commercialy produced for it? Secondly, what is the average time span between the cessation of acommerciallyproduced firearm in a specific caliber, and the cessation of the production of the corresponding ammo.
When was the last timethat the original designer/manufacturer of a cartridge went out of business within 2years of introducing a cartridge. Really doesn't look good for it but who knows .