I've used these scopes on quite a few of my bigbores and always been very happy with them for that purpose. Good Clear glass and the bdc/aimpoints tend to line up pretty well for 100/150/175 if you sight the crosshairs dead on at 75. Ninety dollars is half off and a great deal for what you're getting, in my opinion.
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http://www.cabelas.com/product/NIKON-X-BDC-RIFLESCOPE/2431432.uts?WT.tsrc=EML&WT.mc_id=email-nl&eid=11312679&cmp=EP20161230&seg=EPP3ALL&cnt=12385&ctb=SUBFEAT2