[Aguila Blanca]

I don't have an official answer to your question. I can anecdotally report that I reload almost exclusively with Berry's plated bullets. I have shot my .45 Colt reloads through both a Howell's conversion cylinder and a Kirst Konverter cylinder with no apparent damage to me or the guns. My reloads are a bit milder than yours though -- around 750 fps.