I had Randall Redman rebore a pre'64 M/70 to .35 Whelen more than 25yrs. ago, it's a 1:14" twist. I found IMR 4064 to produce best accuracy with 225gr. bullets and IMR 3031 with 200gr. bullets. I shoot cast bullets with 15gr. Unique for off season practice, also shoot jacketed pistol bullets, my rifle shoots them all accurately. I've taken several whitetail deer with my Whelen, it always gets the job done.
