35 whelen ammo 35 whelen ammo was developed in 1922, it remained a wildcat cartridge until Remington began selling a Model 700 chambered for 35 Whelen ammo in 1988. The caliber is used for big game hunting, particularly in North America. Although not as widely known as its .30-06 Springfield https://firearmsarena.com/product/35-whelen-ammo-2/