Oskar, ouch, about the KTM and stocks. If you have any KTM leftover, couldn't you salvage the pellets and handload them in a milder load with less shot to protect your vintage fowler? The big cost in in non-lead rounds is the shot, not the remaining components. If KTM is anything like NICE shot, a direct substitution of it for lead is safe. (If one beleives the literature. Not so with ITX.) Gil