I went to Namibia two years ago. I hunted mostly in the Mountain's, very open country. I used a 7mm RM with 140 Barns TTSX sighted in for 300 yards. I shot 8 animals and the ranges were from 50 - 327 yards. I live out West and am used to shooting across canyons. There was NO WAY to get closer on my longest shot!!! They were headed out of the Concession.
