Opinion? Probably a good compromise at 1:8. Familiarity with that optic will be a plus for you. Puzzled by that handguard. Are you mounting a bipod? Beyond that, why would you want that much rail on a walkaround dog gun? VFG, weapon lights, etc. really don't have much utility for 300 yard varmints. Overall? I think you'll have fun with it, you might find it a bit heavy as its downside. Enjoy!