Something like 6 years ago I came across a rifle being sold as "Pedersoli Kentucky smoothbore flintlock" Before I bought it, I thought I had ID'd it as a Pedersoli Frontier. It was in very good shape for an old rifle so I took a chance. It is not a smooth bore. Then a couple years ago a friend bought a Deer Ridge which looked just like my rifle with a few minor differences. Last spring while I was shooting at a rendezvous, I was asked if it was a Hatfield. So when I got home I looked up Hatfield and found another picture of my rifle. So my question is how can I tell the difference between a Pedersoli Frontier and a Hatfield?