Have used thousands and thousands of steel loads shooting skeet , never a problem . I would say tho' i only use Gamebore or a cartridge that has the pellets totally inside a plastic wad. It would'nt matter if you were using diamonds as pellets (other than people questioning your sanity )being in a plastic cup whatever your choice of pellets does'nt matter as they never touch the inside of the barrels , as an earlier poster said the pellets are soft iron not steel therefore a hell of a lot softer than the inside of nearly all newer (and most older ) barrels . Also in this compensation culture we live in these days do you honestly think a gun manufacture would say you can fire steel through their gun/choke if this were not the case (i dont know if there are any gun manufacturers left out there who say their guns are'nt steel proofed) Also although i have, as on this forum heard all these "horror stories" about what steel shot does to gun barrels , i,ve never heard of any guns that have been sent back to the manufacturer with problems caused by steel shot .......strange that !! Not that i know numbers but apparently steel shot has been used exclusively in certain places/countries abroad for years and as far as i know neither gun or cartridge manufacturers have ever had any problems with people using steel shot , perhaps these "stories and photos"are about guns /barrels that were never made to have steel shot fired through them !! As someone said read the instructions
But i can totally see where Nicola is coming from regarding the use of steel as a threat to the use of lead