Bruce this is what I have said before:
"All that being said, I don't care if anybody wants to shoot steel out of a vintage gun. If you want to do it, more power to you. But don't say it's perfectly fine on a public vintage gun forum where any novice might read it and think you actually knew what you were talking about."
Destry is right, saying this on a public forum where some novice goes to Walmart and buys the cheapest steel shot available (I know you wouldn't) who don't any know better and shoots it and possibly ruins a fine vintage gun. You want to shoot steel fine but don't go out and say it on a public forum
John D I do know of a very nice light framed Lefever 16 ga that got ring bulged shooting number 6's in a light Mod. barrel, it can happen, and yes they were cheap loads but he was told it would be ok .....