Just another comment. Of course, you DO have to seat the bullets deep enough that the cartridges will work throught your magazine.

And, in addition, your loads won't necessarily give the best possible accuracy with the bullets seated as close to the lands as you can get them, either. They MIGHT, but you won't know until you have tested loads with the bullets seated to other depths as well. Some loads will indeed shoot best with the bullets seated fairly deeply. You have to wait to experiment with bullet seating depth to find out how deep is best, onlyAFTER you have worked upa load for a specific bullet that is the most accurate you can get it by changing the other variables - powder charge weight, primer type, etc. Then you can test out the effects of different bullet seating depths......