My best Bud designed a 1 1/2oz 452 trigger about 15 yrs ago or so. John Pierce, Pierce Engineering, in Michigan did the wire EDM work and I did the rest, machining, drilling, and tapping. Was looking through the shelves in my shop and came across 4 of the triggers and various parts. Took some photos of them, but my server is merging with Photobucket and I can't make it work. Below is some old photos that I took before all was completed.
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Problem that I had was making the bolt release work smoothly. I had other interest and quit on it. I gave the prints and one trigger to a gunsmith in Oz. Don't know if he pursued it.