Home Forums Hunting & Shooting Hunting Rifles Kimber Montana, NULA, and the 284 Winchester

dronofrio,

Make sure that the barrel and receiver diameter are large enough to take the pressure with the larger chamber. Look at the barrel thread diameter. You should be conserned about 'Hoop Strength' in these areas.

As an example, the Winchester Short Action M/70 would be fine and has been chambered in that caliber, but the little Kimber 84M has a scaled down action designed around the 308 cartridge with a small diameter barrel with small barrel threads. Opening it up to the 284 would leave a thin wall barrel in the chamber area.

Headache