I haven't owned a 35 Whelen but I do own a 358STA and have shot 5 elk and a moose with it using 250gr Hornady's at around 3050fps (I also own a 350 Rem. mag and have shot a deer with it using 200gr Corelok factory ammo). I built a couple 358STA's for buddies that shot 225 Sierras and 225 NBT's in them at 3150-3175fps with great success on Alaska moose and African plains game. I also have it's big brother, a 375-358STA, and have kill 6 elk plus numerous deer with it using 270 Fail Safes and 250 Sierras. It's hard to not like a big bore for thumping big critters. They flat kill stuff.