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Old 02-14-2018, 02:46 PM   #21
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Originally Posted by shep854 View Post
Ah. Thanks. Was the precise cause and number ever determined? This was also mentioned as a reason for the carbine's poor 'stopping power'--unexplained misses.
There were no significant number of "bad" M1 Carbines made that I'm aware of. From time to time a rejected part or two would find its way into the supply stream, and I'll bet that's where the non-concentric chamber barrel came from.

The M1 Carbine wasn't exactly an easy weapon to manufacture, and rejection numbers of both complete rifles and parts were comparatively high vs. other small arms. As an example, the entire first year of production, Irwin Pedersen didn't make a single rifle that was accepted. As a result Pederson Co. was sacked, the government seized the company and gave it over to Saginaw Steering Gear division of General Motors; who quickly sorted out the issues and started turning out good rifles and parts in short order. (similar issues with Rock Ola, who was taken over by Inland)

For some reason that was never understood, the most consistent "issue" with the M1 Carbine was they didn't work well in heavy rain. Winchester made Carbines seemed especially vulnerable to heavy water spray, where guns made by Saginaw had almost no problems at all. Still that didn't constitute a "bad" batch of M1 Carbines. Most makers had some issues with heavy water spray, and they never figured out why Saginaw had almost no problems. It should be noted that the M1 Garand often had the same problem.
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Old 07-19-2019, 12:55 PM   #22
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So I was at the LGS today and they had what was suppose to be a real stock with an Underwood inside ?So,I took a look no marks on the pistol grip but the wire frame almost looked right?? looked at the heel could not see any numbers ran the finger felt smooth but dang it if the cheek pad looked good but the rivets looked like tarnished brass?I thought that was a no no.Left it wood was to light in color also thing is the shop guy I talked to was under the impression the stock was legit!They did have a nice 75-80%1891 Argentine all matching minus the bayo being a different # for $499 hmmnnn.Those SA rifles even old ones can be found in nice conditions.
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Old 07-21-2019, 06:31 PM   #23
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The study of M1A1 carbines is pretty complicated. Inland was the only company that actually made them. There were two different models/variations. The difference was in the pistol grip. But there were a couple of companies that made the stocks. There were two different periods of production, early and late. During the later production period, some of the first ones were identical to early production M1A1s, but changed as production continued. Plus there were quite a large number of other manufacturers carbines that were converted to M1A1 configuration post WWII by the military. Both steel and brass rivets were used. The location of the ordnance stamp can also be used in part to date the manufacture of the stock. Many folks are under the impression that the rivets marked 7/4 are not correct for WWII. They are. These were brake rivets from Harley-Davidson motorcycle brakes. As I said, M1A1 carbines are a study unto themselves.
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