I reload my "old" doubles to around 7,000psi and am considering shooting 1 1/4oz Kent TM 2 3/4-inch at 9,060psi in my 12ga fluid-barrelled 1899 Francotte, 1911 Parker VH, 1913 A&N, 1925 Fox SW, and 1938 L.C. Smith. Opinions, please.