I bought a .45/70 Browning from a fellow shooter and the accuracy load he gave me used Swiss FF with a 470 gr. bullet. I checked out buying and having some some Swiss delivered and it was quite high. I already have about a dozen 1# cans of Goex FFg but I do not know how much difference I may get. I shoot local competition out to 300 yds. and may start shooting out to 500. What is the general opinion on whether there will be much difference in accuracy or cleaning ?.