I myself have always used a 100 yard zero for my 308 rifles.I do hunt in the east(Michigan).If you are using it out west,I would choose a 200 yard zero.
You will have to call Browning to find out.
Best to let a gunsmith do it.
"Best" is a subjective term that will be based on your pocketbook and what you are using the rifle for.
Best left to a professional
The best you can afford. Leupold is always a good choice.
You will have to call Browning to find out.
You will have to call Browning.
A lever action rifle chambered in .308 Winchester.
1990
Only Browning knows. My guess is that the 308 is easy to fine tune with loads without it.
You will have to call Browning to find out.
1969