There is no "set" answer to this, Gary. It really depends on the style of Longrifle you are making. Are you going to put escutcheons on the forestock through which to put the pins or keys? Escutcheons are usually seen with keys, rather than pins.
If no escutcheon is used, you mostly see only pins used. I have seen some foreign-made replicas with escutcheons and pins, and there are probably originals made that way, too. I just can't think of any I have seen.
The height or thickness of the forestock often dictates whether you are going to be able to use keys and escutcheons. It the forestock is very thin or skinny, there is no place to put small screws to hold the escutcheon plates to the stock.
I have seen some large caliber, large barrel, thick stocked rifles made in the Southern( Virginia or Carolina) style, but most are rather thin, graceful examples of the gunmaker's art. The thin ones have pins holding the forestock to the barrel.