A 257 Roy is "under-calibre" for use on sambhur as the regs stipulate 7mm and up. BTW I use a 257 Ackley Bob for medium sized animals, close by to Roy performance. I use both a 375MS and Alex Henry 450 BP on sambhur with a 404 Jeff on the way. Gryphon and others can fill you in on what is needed to stop them.

As to some "hunter behaviour" my comments are based on some "in confidence" stories and I'mm sure you have heard some doozies too.

Others around here can appraise you of banteng and feral cattle (20 generations free) but my African sources confirm that their buff are unpredictable but this is not aways the case.

BTW once a banteng is stung by an undergunned hunter then it's not nice to be around. One was stung by an idiot and took 18 30cal pills all up, charging the backup truck in the process.

BTW I'll be in Eritrea's altaplana next year (landmines willing) then an Artic Europe freebie (mixing business and pleasure).

BTW I don't watch hunting videos.