Jevyod, how do you know they are pre Interlocks? Hornady introduced the Interlock design in 1977. Your bullets would be over 40 years old. To answer the question you asked, they will work great. I know this because I have used both the pre and post Interlocks extensively on deer and elk.
I have a box of 175 gr. and two boxes ox of 154 gr., all spire points and the word Interlock is not ot on the bottom of the boxed like newer ones. I sectioned one bullet from each ox and the Interlock ring is not there. I reckon it's safe to say my bullets are pre-Interlock.
Paul B.
