What 'magnum' power rifle cartridge do you think is the most common?

So once you get above .308/ 30-06 type cartridges, which of the "magnum" cartridges do you guys consider to be the most common, available, etc?

Or in other words...if someone who normally only goes for NATO cartridges was considering trading a .308 bolt gun up to a different bolt gun with more punch what caliber would make the most sense from an logistics point of view?

Let's block ads! (Why?)

What 'magnum' power rifle cartridge do you think is the most common?