From published tests and what I have found in non scienctific tests .
NO bullet will punch thru brush and not deflect ,not even 12 gau slugs.

IMO the BT are no worse and maybe a little bettter than a soft point in not deflecting on brush.
The soft point has more nose area to impact a branch and dig in compaired to the sharp point of a BT.

If you hit a branch or heavy weeds any bullet will deflect regardless !