Yeah the shots you took was only asking for trouble.
The BK has plenty of juice to blow through any deer IF your shot placement is right.
My BK 60lb 28" draw lenght and a 410gr AC Superslim with a 100gr Muzzy 3blade killed 3 pigs with the one shot

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Did not get a complete pass through on the 3rd pig but the broad head was one side and my fletchings 1/2 burried, not too bad seeing all 3 pigs where around the 145lb.