Thanks, Mike. The black and white photo was taken by Greg Roberts, production manager of the Green River Rifle Works in November, 1975 when they had the Bridger rifle in their shop. I handled it there in 1978, we even took the lock out of the stock. Greg took a roll of 35mm film, the pictures are dirty and have coffee spilled on them, but I photographed all 24 of them. Maybe a smarter friend can help me clean them up in Photoshop, or Paint or some such. Bob is bringing me a new modern computer in about a week, will work on it then. This one was taken by my friend Dave Boender.
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This is Carl Walker, gunsmith from GRRW, holding Greg's photos. I copied each one with a digital camera.
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Greg made a detailed tracing of the Bridger rifle, with measurements and comments. I made a copy of this for myself.
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This is probably the photo you showed, but cropped for enlargement.
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It is tricky scaling photos. The Bridger lock is 5.0 inches long (I measured it at Helena museum), and the trigger guard is 5.6 inches long. But when I scale it off the color photos, I can only make it about 5.4 inches. It scales about the 5.6 inches on the B&W photos. I also get the buttplate about 4.25" in ;the color photos, but I measured it at 4.5". And the real length of pull on the Bridger Hawken is 13.25", not the 13.5" shown with Montana's photos. I gave the museum curator, Mr. Reimer, all my measurements, including the barrel length, width across the flats at breech and muzzle, and the correct length of pull when I handled, measured and photographed the Bridger at the museum in September, 2012.