Conor, I feel for you that it appears how I live my life and what I believe cyclically trigger emotions for you. Good to reset my own expectations periodically too, had been gaining appreciation for your posts again as of late. As usual, forgive me for not being interested in engaging in a personality conflict, it brings nothing to life that makes me smile.
To answer the part of your post that makes sense to me, the .338 is a good chambering, it’s quick enough. The .450 Marlin, I don’t feel the same about for Grizzlies. Between it and a .270, the .270 wins from what I’ve seen. Which is probably more bears shot than Keith saw.