Hi all, hope everyone is doing well. I have just recently purchased a second hand Tikka T3 lite 223 and it came with many rounds for me to use. Some new and some reloaded. But one bag was some new Horrady Match Case rounds. These have a case that is an army green color, and I believe they are a steel case. My question is, are these safe to use? Cause the manual for the gun clearly states "DO NOT " use steel case rounds as they can cause damage. The manual also recommends not to use reloaded rounds, but this is not a bold "DO NOT ". Any advise would be greatly appreciated. Thanks. Peter.