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I am new at this, so I hope this goes through. … I am sure you know that there are alternative hammers from a number of suppliers to eliminate "hammer bite."
My project gun is a BHP clone. I just finished the design changes I wanted to make, but the pistol needs a range test next week. One of the items from initial firing was "hammer bite." I have modified the hammer by removing material from the offending area. I think I have removed enough to prevent the problem, but will not know until next week. If you are a purist, you may not want to do what I did. My modification is not perfect, but I am hoping that the pistol will fire normally without the annoyance of constant pinching--it made firing the pistol far from being enjoyable. Do you wonder how a great designer could miss an obvious defect for the average user?
Regards,
MikeFlorida