Do you mean that the scope tube is too short? That's a fairly common problem. You'll need a set of bases with a reversible front. I really like the Burris Xtreme bases. They are steel and multi-slot weaver style. I'd also recommend Burris Signature Zee's to go with them
180's are great on elk, I also like 165's for mule deer. Accubonds are my favorite.
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