So far I've only tried copper in my Tikka T3X .270. I bought this rifle new 18 months ago and knew that some sort of lead ban would be coming sooner or later so made the decision to start off with copper and get some experience before it became compulsory. I tried Hornady CX in 130gr and Sako Powerhead Blades in 120gr. Both proved to be accurate and repeatable but I decided on the Sako Powerhead Blades. Not had any issues when shooting deer at up to 270m or seen any big differences with entry / exit wounds, dead is dead. Probably put 4 boxes of factory ammo through it in that time and a number of reloads when working on a load that I'm happy to use. Down to my last 8 rounds of factory ammo and once I have used this I will be dong all my stalking with reloads. Whether buying factory rounds or reloading it is more expensive than lead but for the numbers I'm shooting cost per round isn't a big decision maker, If I was shooting regular shooting on a range then the extra cost would definitely start to hurt. it will be interesting to see how my .243 copes but it is a popular calibre so something that works is bound to be developed. I was only quite young when the lead ban came in for fishing and it didn't change much if anything for me, hoping it is the same with shooting.