lapsub, Welcome to the forum. I have been using a 9,3x74R double [with scope] for a little over 6 years. It has become my favorite rifle under 40 cal. 286 grain bullets are my favorite, with the Woodleigh and the Nosler Partition giving excellent results on small and big game. From bobcat, coyote, turkeys, deer, pigs, black bear, kudu ,waterbuck,impala, baboon,civet cat, jackel, klipspringer It kills very fast with very little meat or hide damage.
I have found the 9,3 to be very effective to 300 yards.