I have done 3 6mm ARC bolt guns. 1st was a Savage Axis was bought due to availability & while is shot rather well with my reloads the Mag feed & over feel left me sending it down the road rather quickly. Next was a re-barrel of a CZ527 w a 22" pacnor light contour barrel & this may be my favorite over all hunting rifle of all time.
Admitted to myself last year about this time that the 243 is just to large to fit in one of my favorite micro action rifles. See The 204 Ruger introduced me to the CZ 527 action & I have always liked that little Mauser action. Though I grew up with a 6mm Remington which would have been enough...
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My most recent 6mm ARC is a 22" Howa mini that was purchased as a Brownells barreled action. Picked up a factory 2nd carbon fiber stock & JO bottom metal. Not a bad rifle though I personally just like the CZ 527 better.
Not much help in your price line.
Have a buddy that picked up the Ruger Though I have never touched one so I can not honestly offer much on the Ruger. Though from what little I hear, I feel the Ruger may serve your needs well.
Thus far my favorite projectiles for deer hunting have been the 108 GR Elite hunter, 87 GR Absolute Hammer & the 90 GR CX. All have preformed very well & put a smile o my face when comparing to larger capacity cartridges.
Just starting to tinker with the lighter bullet offerings. May be able to share more B4 spring.