I have a Weatherby Vanguard 2 carbine 7-08 . I'm looking for a good load using IMR 4350, 140 gr. Sierra P.H. Nos. brass & CCI B.R. 2 primers. I've found 46.5 gr. of IMR 4350 with Swift s.p. on Hodgdon web site. But nothing for the Sierra. Also have R17 & R15 powder. What kind of Max. velocity can I expect with a 20 inch barrel , give or take F.P.S.?