The identification "Carcano" bullet has turned out to be incorrect. Recent archival research by bullet-book author Dean S. Thomas in Confederate Ordnance Department documents has found on-paper proof that the Confederates called your finds a "Raleigh pattern" minie-bullet, because all of that type were manufactured at Raleigh NC.
Unfired .69-caliber Raleigh-pattern minies (the caliber you found) sell at civil war relic shows in Virginia from between $25 to $35, depending on condition. The base-view photo of the one on the right in your hand shows its base is a bit "smushed," so it's worth a bit less than the completely-undamaged one on the left.