Forgot to add that the most critical dimensions are the distance from the rear of the pin to the front of the major diameter before the nose tapers down, and the position of the firing pin's toe relative to the link protrusion that acts as a retractor.
There's a REASON why the firing pin tip broke, and it's possible that it lies in these dimensions. Otherwise I'd strongly suspect a too-hard tip, a common problem with bushed pins/blocks.
I've built and shot lots of walls in the past 40 years and first formulated this repair in the middle '70s. So far I've had no failures and have not heard of any failures of repairs I've done for others. Not saying there have been no failures, just saying that I've not heard of any.
I attribute this to the cushioning effect of the Black Max combined with the relative softness/toughness of the tip insert.
Of course this method is also applicable to many other firing pin repairs in addition to the Winchester walls.
Regards, Joe
Last edited by J.D.Steele; 08/09/11 10:10 PM.
