I have a Sightron S1 3-9x-50 on my 270. Around $200. I have 3-9x-40s on my other centerfires. Nikon is nice as well as durable but I love the Sightrons. You can go the Sightron S2 route and get fancier optics but $200 fit my pocket better than $350.
BTW I dont see the point of a 50mm scope. If you cant see it with a 40mm it must be night time.
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