For interest, in NZ we are paying quite a bit less.
Sako, for example, has gone up by about 20% over the past year (rationing I guess so the poorest can't have it at all), and now most of it is just over NZD100 a box. Worst I heard of at the range yesterday was NZD130 for 20 Nosler brand 6.5 PRC.
This is an advert from today at pretty much the "Old Price" : Entry level 308Win NZD 90 for a box of 20. That's about £40 (UK Pounds). Yet it has been shipped literally to the other side of the planet. Do you have some sort of tax on yours ?