Thanks for the info. I have had my own 300 H&H in an x-bolt since 2018 and also have used H 4350 in it. I was just trying to recreate my Dads load in his rifle because I knew it had been so effective. What kind of dye are you using for neck sizing?
I use either a primos tightwad (.660) or Trulock (.675) in both my 870 and 11-87. They both give a good even hunting pattern with 7&9 tss blend and are reasonably priced.
I’m trying to match my Dad’s favorite load from the early 1960s for use in his rifle that I inherited. His notes just say 67 grns of 4350 for the powder. What would be an equivalent in todays powder? IMR4350? H4350? or something else?