I have an old bolt I converted to 7.62x39 years ago. I have killed deer with it with no problems. The old statement "Same as a 30-30" is silly. I still have two 30-30's and have shot dozens of others. The only one even close to the accuracy of my gun was an old Savage 340. Here is my deer load: Remington .308 150 Grain SPCL, H4198 24.0, 2.200 OAL