This is from my friend who's the director of IDPA in Canada, and closer to the source than I, posted on the official IDPA forum:
Since the addendum came out we have a ruling that allows the .45acp/.45LC/.454 Casull combo. The combination was just missed. I don't have Robert Ray's email but I am sure he will chime in here.
Take Care
Bob
So, it looks an addendum to the addendum allows interchangeability.
Since the addendum came out we have a ruling that allows the .45acp/.45LC/.454 Casull combo. The combination was just missed. I don't have Robert Ray's email but I am sure he will chime in here.
Take Care
Bob
So, it looks an addendum to the addendum allows interchangeability.