I finally got O'Brien out to do some calling on New Year's Day near Big Spring. 1st set produced a male dog that came in quick to my Varmint Inc call. Had him down with the AAC 308. 2nd set produced this big female OB is holding. Dog took a little longer maybe 10 minutes . Dog was also dispatched with his AAC. Wish he'd get his can in for it. Also used Varmint Inc call.