When I had my .35 Whelen built 30+ years ago I did extensive load development work, the most accurate load I found at the time was IMR 4064 with a Sierra Game King 225gr. bullet. Lately I have been shooting a Ken Waters Pet Load consisting of IMR 3031 and a Hornady Inter-lok 200gr. RN bullet. This load produces three shot cloverleaf groups @ 100yds., a bullet recovered from a whitetail taken @ 100yds. was perfectly mushroomed and retained 66% of its original weight. All of the deer taken with the SGK 225gr. bullet were complete pass throughs.
