As I see it under 170 mtr you don't need a lot of power / speed but you probably need them to go down quick as finding anything in scrub during the day is hard enough. Doing it at night would be real hard. Guess thats where Dogs and Thermal help.
Did not quite catch it but sounds like you have something sorted already.
Other wise I was thinking something like 30/30, 35 Rem, 338 fed or 358 win.
Personally I would stay away from 308 as thats too common (and just to all round practical).
Could also argue that the bullet selection for the 338 are a little tough.
358 is a reloaders option only but would suit the brief. Large round nose bullet more forgiving than most for shot placement.
Zq
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