I've been to RSA once, killed 3 animals with a Kimber Montana 7-08 and 120 grain Barnes TTSX (impala, warthog and bleskok) and a kudu and gemsbok with a Sako A7S in 270 Win shooting 156 grain Hammerheads. I did feel a little under gunned with the 7-08. I had elbow issues and couldn't take the recoil of my Rugers in 375 and 35 Whelen. All the other guys in camp were shooting 30-06's and 180's. Agree with the hundred yard zero, my longest shot was 156 yards. Nice Mountain Rifle.