Rusty Zipper.
The 35 Whelen all day. With a 225 grain accubond at 2,800fps with 60.5 grains of Varget or a 250 grain Speer hotcore at or hornaday roundnose or spire point at 2,700fps gives you 4,000,fpe of smack down power. Using Speers load of CFE223 directly from the Speer reloading site.
Those loads should cover all your needs but If'n they don't you can always step up to the Woodleigh 275grain PPSP and 310grain round nose or solid. The other good bullet is the 280 grain Swift A frame.
Thirty five Whelen nut.
Bob Nelson