I have taken 4 bear with my Slick Trick 125's. They have all been complete pass throughs and the farthest a bear went after the shot was 45 yards. I shot Muzzy's for many years before switching to Tricks. I have been very impressed with the Slick Tricks, and wished I would have switched sooner. Great penetration, and unbelievable flight. I also like the 4th blade for extra tissue damage. I am getting 61 lbs of KE with my set-up, and have blown through everything I have shot with the Tricks.