The Tricks of the Trade — J.R. Roberts

.. . . DIE BY THE GUN Clint Adams knows that the average gunfighter doesn't live to a ripe old age. Making a living from slapping leather will do that. So he's surprised to learn that one of the most feared elder statesmen of gunfire is still breathing—and looking for him. Over the years, Two-Cent Luke Drogan has put down more men than most under­takers. With ice for blood and nerves of steel, he has survived a lifetime of hot lead, leaving bodies in his wake. Now, like an old wolf that's outlived all his prey, Drogan knows he has only one thing left to do: face down the Gunsmith—and kill him. Two masters of the six-gun. Two living legends of the Old West. Only one will walk away...