I was not suggesting that the bullets tested were applicable to the 300 RUM--but the bullet's behavior--opening, penetration distance, trauma shock etc are quite useful IMO as indicator's of the bullet type's behavior. Seems to me this type of test could easily be modified by introducing harder objects simulating bone density. One of the main public uses of the 6.8 spc is to hunt deer with .270 bullets adapted to the M4 carbine platform .