Had that happen a couple times and it was always with the wind in my face. I thought it was just being blown back from the vents. It shot like a dream with 90 FFg Goex and 300 grain XTP's in the T/C Break-O-Way sabots, but I got rid of it after that. Never could get that first-run 1 in 20" twist barrel to shoot Maxi Hunters or Maxi Balls either one. You could hit a 8 1/2 x 11 piece of paper every time at 100 yards, but where on the paper would be anyone's guess. The Thunderhawk that I replaced it with shot just as good with sabots and I never got anything in my face again.