Two years ago I shot a number of marmots between 600 and 749 yards with a Cooper Custom Classic .270. This pretty much maxed out the elevation in the scope, and my ability to score consistent hits with this rifle. Last winter I had Scott Harold of Quarter Minute Magnums build one of his long range hunting rifles in 7 rem mag, and today I skipped work for the first day of Colorado's marmot season. My goal was to break the half mile mark. We have a limit of 3, and I took my 3 at 920, 1108, and 1156 yards. I was shooting at close to 12000' elevation along the continental divide. The G7 range finder was spot on with ballistic solutions, and thanks Scott for building a wicked accurate rifle. Next goal, 1200 yards.