I had the pleasure of acting for an old gentleman who was a Sherman Commander it Italy in WW2. He told me a story about tangling with a Tiger 1 which was unpleasent for some of his shermans- and feeling the wind of an 88mm round would not have been fun. The Germans called them "Tommy Cookers".
The BAR is an old system. They weigh a tonne, and are not controllable on Auto. They are hard to strip, and have lots of fiddly bits. Would rather have one than a poxy SKS mind you!