It will work fine. I use a 5 gr adjustment from 55 gr of P pyrodex to Goex 60 gr FFF and with the 54 I use 110 gr of RS and adjust to 120gr of Goex FF to get the same point of impact. While different guns will vary some I doubt it will be much. Some group better with one some with the other the only way to fined that out is to shoot both.