I have used the Spitfire 125gr. Broadhead's, They fly very , very flat. They expand on Impact, I have been able to stick 4 fingers in the exit hole & on a few entrance hole's. I have shot Deer with them at about every angle possible, Even Left handed on 1 deer.
I have shot & Had very effective results out ot 40 yds. The Deer I shot this year was an 8 point @ 37 yards, He maybe went 25 yards after the shot. I have never lost a deer with them either, I also like the fact I can replace just the Blade's, and they are adjustable with a set screw. So you can have them open up easier or a little stiffer. I have them set about in the middle, They havent let me down yet, So I have no desire to switch.
I do use a Crossbow, & Im shooting them @ 310fps.
