I shoot 69 Sierra's, 60 gr Horn HP's, 55 gr Nos BT's, 55 gr Rem PLHP's, 50 gr Nos BT's, 40 gr Horn VMax, & 40 gr Nos BT's in my 1:9 twist Savage....and all shoot very well. The 69's, 60's, & 55's shoot the best.
Try some IMR4198 or Accurate 2230C or 2460. I use Winchester primers (plain...not 7.5's...just regular Win.).