Hammer face metal

[Roundsworth]

I wonder about that, also. When I refurbished my 1895 vintage Syracuse Lefever, I replaced the firing pins with new-made units. The striking area of the new pins are slightly rounded, unlike the originals. The faces of the hammers showed slight signs of use, but nothing that was noteworthy. After about 30 rounds, I disassembled the gun and discovered that the hammers now have small concave dimples in them from the new pins! The hammers looked great after 115 years in service, but, after 15 rounds each, now have dimples.