Originally Posted By: Shotgunlover
Le Fusil, the process of branding you describe would account for the pin impressions. But what about the positive imprints of screw slots and other marks?


The "tool" has a slot cut into it like to match the pin. The stocker I know has a variety of sizes that he has made for that purpose. A clarification, when talking Brit guns, a pin joins metal to metal, a screw joins metal to wood.