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gyvel · September 19, 2009, 11:59 PM

800,000 is an arbitrary number selected as the cut off for double heat reated receivers; The exact serial number is actually unkown other than it was "around 800,000."

There was a very good article written a number of years back and published in one of the more obscure collector's periodicals about a Springfield receiver that DID let go and was in the s/n range of 813,000. It was subjected to advanced tests and found to be "improperly" heat treated and very brittle. Recovered fractured pieces were found to exhibit the same crystallization typical of other low number receivers that had failed.

The point being: 800,000 was an arbitrary number that was picked as no accurate records were kept. The account of the 813,000 range gun strongly indicates that improperly heat treated receivers actually surpassed the 800,000 number.

September 19, 2009, 11:59 PM	#33
gyvel Senior Member Join Date: August 30, 2009 Location: Northern AZ Posts: 7,172	A caveat 800,000 is an arbitrary number selected as the cut off for double heat reated receivers; The exact serial number is actually unkown other than it was "around 800,000." There was a very good article written a number of years back and published in one of the more obscure collector's periodicals about a Springfield receiver that DID let go and was in the s/n range of 813,000. It was subjected to advanced tests and found to be "improperly" heat treated and very brittle. Recovered fractured pieces were found to exhibit the same crystallization typical of other low number receivers that had failed. The point being: 800,000 was an arbitrary number that was picked as no accurate records were kept. The account of the 813,000 range gun strongly indicates that improperly heat treated receivers actually surpassed the 800,000 number. Last edited by gyvel; September 20, 2009 at 02:53 AM.