What are your expected ranges. My Mannlicher stocked 270 wore a 1.5-4.5 straight tubed variable, it looked very nice on it and worked very well in northern MN and WI.
I've seen many Fullstocked rifles in Europe wearing scopes with up to 56mm objectives for late night hunting they do look large on them.
I wouldn't go with a fixed power scope on a predator hunting rifle ust for the fact that the FOV is so small on a fixed 6 compared to a 1.5-6(my favorite) or 2-7.
I wouldn't overlook a Leupold VX-3 1.5-5x20mm, my nephew uses one on his 243 for coyotes.
Leupold Compact 2-7, one of the smallest ocular housings on a scope so I can mount it low to clear the bolt handle.
Same rifle dressed for work and getting the ob done