PJGunner
The bullets used in the my 35 Whelen were the 225 Partition and the Ballistic Tip. Actually, there were two, a Mauser action with a Douglas barrel (shot consistently 4 to 5 inch groups with a variety of loads,) same rifle rebarrelled with a Shilen barrel (shot consistently 4 to 5 inch groups $500 later), and then a Remington Classic in 35 Whelen. The Classic shot pretty well. I believe they all had 1/16 twist.
I honestly don't know what to blame the difference on. Bullets? Twist? Higher velocity? I didn't load the Whelen hot, my notes are buried somewhere out back in a storage bin.

Fred