I play golf and use a dedicated RF to ping flags and other features. Some golf RF's use first target technology to favour the first target it sees rather than the last. So if you are trying to range a flag on the green and there is a bush 20yds behind it, it wants to lock on to the flag rather than the bush behind it. I think some hunting range finders will ignore obstacles in your way and range the thing you are pointing at in the distance, so if you are trying to range a deer with a couple of twigs in the way, it ignores the twigs.
I would steer clear of dedicated golf range finders for hunting although I am sure you could get them to work fine.
To be honest, while they are pretty robust things (mine has got soaked numerous times in my golf bag and has done stupid amounts of work over the years) they are also quite cheap to buy brand new. I personally would not spend 60 quid on a golf RF that is 10yr old when you could get a decent hunting RF new for less than £200.