1Yogi perhaps you meant 7.62 (ie .308) bullets? The flatter shooting bullets have a higher ballistic coefficient. You can often find that figure as you look at cartridges and ballitstics on ammo maker's websites. Some cartridges can handle longer bullets because of the length of the neck on the case. Eg, it is easier to put a long heavy bullet in a 3006 than a 308 Winchester. Check out the ballistics tables. Get a picture of what you see as "flat" and enjoy!

God gave Americans the .30 Cal. He was right!