Walther TPH misfires - Practical Machinist
Walther TPH misfires I have a Walther TPH pistol in .22lr that fails to fire about 10% the time; it's a little worse from DA, but it also misfires from SA. The firing pin indentations on the rim are all quite faint on all cases, fired or not. I added a Wolfe extra power mainspring, which did exactly nothing and the firing pin is moving free and ...