I don't live in NFLD but have hunted there many times around that time. It will start getting cold at that time of year with mornings in the 40-50's The province WILL be wet so footwear is of upmost importance. Shots on caribou are usually pretty close so a 20X scope is not needed. It is a great hunting area. Hope you enjoy.
There can be too much of a good thing with antler rattling.
I like to hit the horns together for a good 30- to 40-second rattling sequence and then hang them up and resist the urge to hit them again.
This works to the hunter's advantage, because if a buck has heard it, he may have been 300 or 400 yards away and he comes in and he's not exactly sure where it came from.
When finally is time to rattle again throw a slight change-up into the routine.
The second time, don't rattle as loud...