Like all the other wise gentlemen have stated, get a Lee FCD and gentley, gentley crimp any bullet you want cannelure or not. Gentlely. I crimp all my .223 semi auto ammo. Never had a problem. When I crimp I feel like Im getting even pressure on all the bullets which aids in consistency and therefore accuracy.
While .223 isnt my first choice for deer hunting (well sometimes it is) Like others have said shot placement is key. I use the Sierra Gameking 65gr bullet and it has put plenty of meat in the freezer. There are plenty of good bullets for hunting just look around online. I have been wanting to try some of those Barnes 62gr. I bet those puppies are sure nuff deadly. Partitions, Winchester PP, all work fine Im sure. Im just partial to Sierra because they are excellent bullets for the price.
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