I am not a re loader but have been wondering about the differences between copper and lead bullet performance. given the same bullet weight , let's say 100 grains out of a small bore rifle. If a copper bullet is used it will be longer than a lead bullet of the same weight due to density differences what effects would this have on: 1. bullet interception on approach to the barrel rifling? 2. since the bullet is longer does it will have a better ballistic coefficient ? -will this better BC make up for the lack of density? -how do the two compare to downrange terminal velocity at , let's say 300 yards seeing both weigh the same 3.how would the two compare with a cross wind? copper has more surface area to be affected 4. I assume the feeding characteristics would present problems out of auto loaders. Excuse my ignorance but I really don't have my head wrapped around these answers?