Swamp, the factory also chooses the powder charge, seating depth. Also chooses the trigger pull weight, lack of bedding, etc. Should we accept all those since the factory does that? I think not. We load our own and tinker with our equipment to get better results. I crimp all my pistol loads very few rifle loads and only after testing for accuracy/reliability. Doing something because the factory does shows a lack of understanding of the loading process. You should just shoot factory ammo since that is what they do.Rick.