I would rate the 9.3x62 about like the .35 Whelen. In Alaska my partner used one to kill a Kodiak bear. It seemed to kill as well as my .375 H&H.
I had a pre 64 M70 FWT in 30-06 and was so impressed with his .35 W that when I returned to the states I had it rebarreled to .35 W. As it turned out I never shot anything with it.
Ecclesiastes 12:13 *¶Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man.
14 *For God shall bring every work into judgment, with every secret thing, whether it be good, or whether it be evil.