x3 for the Core-Lokt's. Have used them very successfully for many years.
First year I went hunting, I used Winchester Silver Tips in 170 grain for my .30/30, figuring that the bigger the grain the better the bullet was. Boy was I mistaken. At 60 yards, I hit a large 6 point one weekend and a decent sized doe the next. They hit, knocked the deer down, but neither penetrated the chest cavity. Called my father-in-law who said to use Remington Core-Lokt. Switched and have been happy ever since.
Only thing I've switched from Core-Lokt is the Hornady LeveRevolution rounds, but still use them both.