From what I have heard, the magnus is more accurate, but it is smaller and works for body shots. The Guillotine has a larger cutting diameter, but it has straws on the blades, and dosent seem to be as accurate. For head shots, I believe the guillotine would do better, but the bullhead will work for head and body shots, so I don't really know which is better,
3" cut bullhead to the body of a turkey? I doubt it would get enough penetration. The Bullhead was designed to be a head/neck broadhead, like the guillotine. The bullheads are tougher for sure. You can actually shoot a bullhead many times into a foam target without ruining the blades, not true with the guillotine.
They both take special/long arrows do to the extra long blades. They both work great on turkeys when you hit the head or neck. Which is most accurate? We've found that they both CAN be accurate with an arrow with good long fletchings with some helical. That much blade on the front really needs a lot of fletch on the back to stabilize.
The bullheads don't use straws because the blades actually have a slight angle to them to help stabilize in flight, the straws on the guillotine where to help prevent the blades fromsteering the arrow. The little straws don't effect penetration any, but kind of a pain in the butt.
Both of them also are kind of a pain to carry since they don't fit well into a quiver. But we jusst add foam to the quiver so that the head doesn't have to fit into the hoody.