I have an Isaac Hollis 500 serial no 108114. I guess from other stuff it is in the range 1870-1900ish. Anyone able to give me any more precisse date info

It weighs 9 3/4 lbs and I think thats a bit light, I am getting it restocked and want to end up around 10 1/2 lbs (stock is too short for me anyway)

Any thoughts on is this abt right to help cut down recoil a bit, and if all the wood doesn't get me there whether to incorporate a bit of lead in stock or fore end - I assume I want to get as much weight as pos between my hands as with shotgun??

Thanks for your thoughts