I have a vanguard s2 in 300 wby mag and recently acquired a 100 count box of 190 gr ABLR which I've never tinkered with before.was wondering if anyone had any insight? I have RL19,RL22,RL25 & IMR 8133 on hand.I do have some 7828 and H4831 on hand but probably only half pound of each and can't get any more