A few years back i took a mate for a walk in hunt for deer and he ended up nailing a hind with his latest rifle which is a .458W necked down to .375 using 300 gr Nos part`s,i had a few shots myself and found it suprisingly mild to shoot,Q`s is ( i have lost contact with owner) what is thought of this combination? anybody know about it at all and have any figures comparable to any other cals.Or is it known as a semi-commercial cal?