I suppose talking about the 55 grain vs 62 grain, 14, 12 and 7 twists per barrel, steel vs lead, tumbling vs stable, 11 vs 20 inch and the needed 2,700 fps needed to start tumbling is a waste of time on the anti 5.56mm round crowd.Been there, done that, shot 72 grain and hit target at 600 yards/meters. Amazing!