If you had a nothing special about it hunting rifle in 308 win given to you. It's only ever going to be a backup. You wanted to put a standard 3x9x40 scope on it. The scope must maintain zero within "minute of the side of a deer". The optical clarity has to be "see a deer in the bush" quality. After it's zeroed, the windage and elevation adjustments will never be touched again. You've got $300 to spend. What would you go with ?