I was at a friend's house and he brought out a Sako M78 Hornet serial #7189XX. Never having an interest in Hornets, I have never held one to look over. When I flipped it over to look at the right side, there was the Bofors mark on the right side on the barrel. I assumed M78 meant it was introduced in 1978. Have I assumed incorrectly about the date? To be marked Bofors, wouldn't it have been produced before 1969.