I don't think it will cause any problems...I give talks to the local schools on the American Revolution and demonstrate how to start a fire with flint and steel...One thing Idemonstrate ishow cotton or poly will not catch on fire by throwing sparks on the sleeve of a volunteer...You have to have char to hold the spark and get a fire made...

As Cay mentioned, you could try before actually hunting, even use a blank load, but it would suprise me if you had any problems...