Thanks for reading the article.
I found this write up to be a good comparison between the two.
https://www.gunmann.com/learning/300-hamr-vs-300-blackout/Unfortunately, Canadians cannot use an AR for hunting, and this is what the HAM'R was built for. Its use is restricted here, so it's a "range only" rifle. We will only see this cartridge north of the border if hunters and shooters rebarrel a bolt action or single shot, or if Savage or Ruger produce a bolt action for export.