To be fair a great percentage of members might not have shot as many deer as as me on deer or not many deer full stop ? , it often seems that way in the main part ! the best of the copper bullets kill far better than lead , dealers and estates require copper shot beasts I had a very long time shooting lead before copper even existed in the uk gunshops shelves , i would not go back ! But lets get this clean and simple its now required . Some early copper was pants ! That's largely stopped as users stick to the better stuff ( buying the cheapest copper bullets your far more chance of getting poor ammo )
Barnes have a long history of making copper hunting bullets and i have to say they kill really well indeed and the 50 grain Hornady has served me well before the 50 grain tTSX 50 grain was available .
The nearest thing to Barnes is the lead Nosler partition in the .223 indeed i would say it might be a tad better than Barnes on the small deer species of deer
The only guns i shoot lead in is .22rf , 22hornet and 223 and of course a few .22 air