I am building my first long range rifle, I started with a rem 700 sps varmint in 308. I replaced the stock with a boyd laminate stock and had it pillar bedded. I had a trigger job done which was a great improvement. I am going to use a Nikon buckmaster 6-18 and now need to choose what base and rings to use. Money is a factor but I want something made of steel. The rifle will only be shooting out to 600 yards so I don't think I need a moa base. Any help would be great. Thank you.