SA 4.3 Barrel date
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Opps lost that post lets try angain. I have all in the date base from 5/52 to 1954 barrel dates. The early 4.2 stuff is vary hard to find but I keep looking. When the data is sorted then yes barrels/receivers line up nicely. However there seems to be a receiver number that is outside the range of expected barrel dates. According to Scott Duff the rifles where assembled out of order. Anyway, the marks on the barrel are more important then the dates. If you look at enough barrels you wiill see what I mean. There are still many questions about the 52/53 era at Springfield, but I still keep working on it.
Enjoy this stuff... SniperComment
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Comment on the early SA#4.2s
SA# 4100001 thru SA#4204937 have 9 Heat lots and revisions #27 thru #42.
The Barrel dates group within Heat lots.Meaning, that serial numbers of receivers with the same
Heat lots run in numerical cadence with barrel installation.
"B43A' becomes a predominant heat lot by SA#4203146 in the #42 Revision,but not the only one.
Prior to this Heat lot Receivers have very mixed groupings.
SA#4.2 was nothing like WW2 production. Errors and backlogs forced some groups of SA#4.2 to be set aside
for later assemblage,much later assemblage.
It is an extremely interesting Serial number group that sometimes defies logic.
Respectfully submitted
Ed ByrnsComment
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Ed,
Thank you for commenting and adding additional clarification to the post. Without your help I would not have been able to possibly validate what I believe is a correct rifle. In my research in this SN range (very limited) I noticed some interesting anomalies in barrel/receivers combos that I thought were correct.
regards,
CCComment
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I have an SA 4,263,XXX with this info on the barrel "SA D6535 448 12 52 A185A P", the P is toppled over and in line with the other info. Seems that 52 barrels are out there and must have been mixed in with 53's as some of you have earlier M1s with later barrels.Comment

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