Better than bleeding to death. The sad thing is that there really is no good way to deal with this kind of injury short of surgery that may not be readily available. The best you can do in the field usually is to slow the bleeding down some and hope for the best. If an ER is ten minutes away, probably an adequate response. If it is ten hours away, the victim will likely die.

I expect to see cans of great stuff now a must carry item in the fully stocked FAK.