RE: 6.5x55 sweedish?
I' m currently rebarreling a model 70 to .260 remington.
Handloaded, the 6.5 X 55 is a slightly better cartridge and that Tikka will allow you to improve on factory ammo which is designed for the 1896 Mauser.
Personally I' d use a thirty caliber (or bigger) on moose and elk, but there' s no doubt that the 6.5 X 55 will do it too.
Check out Holiday village for the best price however. Maybe it' s now called Gander Mountain.