it happens now and then though with the steel framed colts....friend of mine had the arbour pin get lose on his 1860 army after about 30 years of shooting it![]()
As for the Remington 1858 - they were a totally different design and did not have this problem.
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if I know any of these guys around here and how they treat thier guns I'd say it was from seating the barrel wedge in to hard.....drives me crazy people who dont study what thier shooting before they shoot it.