I've heard, and read of guys having problems anchoring coyotes with the poly tipped bullets. Sounds like if you aim to miss the shoulder, the poly tips do a fine job with no exit.
I reload and have been using the 40 gr. and the 35 gr. Berger bullets and have been very pleased so far on the 14 that I've shotthis winter. Longest shot to date was 200 yards.