The ring of bright metal is the rear of the barrel and its chamber, the barrel has already been threaded into the receiver. Also see the finish reaming section for a discussion of the chamber and how it was reamed to its final dimensions after the barrel was threaded into the receiver. Army, retired, The Telegraph Press, Treatment: Carburize 0. Rockwell D 59 to D Revision 18 means rifle serial number range 3,, - 3,,, so it was manufactured during December That last character is a diamond, in case your browser can't handle Unicode.
The indentation visible above the drawing number is a punch mark used to test the Rockwell Hardness during manufacturing quality control. Remember that the punch mark just means that it has been tested. It does not indicate the result of that test!
But I would expect failed bolts to have been destroyed, the steel thrown back into the smelter for the next go-around during December The war was moving toward a fairly obvious conclusion then, but quality steel was still a valuable resource. If nothing else, failed bolts would surely be obviously marked or better yet destroyed "de-militarized", or "de-milled" to prevent their accidental use.
Modified with composition as given above under M rifle. Treatment: Normalize before machining. Carburize 0. Rockwell C 35 to C 59 on locking lugs and rear end of bolt. Type 2 rear sight bodies were used from around serial number 25, through the end of production, so any time after December That means after approximate serial number 4,,, so post World War II. The WWII-era windage knobs used a relatively poor design with a "lock bar". Each click changes the windage by just less than one minute of arc, or 0.
Type 4 elevation settings marked directly on knob, "2", "4", "6", "8", "10", and "12" indicating range in hundreds of yards. Using standard M2 Ball. The operating rod was of Types 6A through 11 based on the squared straight-sided hump seen here. That plus the flat surface of the bolt lug housing seen above means it's Type 6A, so serial number range of approximately 3,, - 3,, The rounded notch labeled here would have been done during post-WWII modification.
This change from what was a square corner reduced stress. Given that marking, Springfield type 2D Approximate serial number range: 2,, - 3,, I think this is a Springfield Type 3.
That would imply: Approximate serial number range: 1,, - 2,, Manufacturing date range: March through May Springfield Armory manufacture. Approximate serial number range: 1,, - 3,, Manufacturing date range: December through December Trigger guard is Type 1 milled.
Specifically Type 1G — no diagram marking, but an inspector's initial stamp R. Manufactured by Springfield Armory. For example, M1s manufactured by the Springfield Armory with serial numbers between , and 1,, were made in November Knowing the serial number alone is not enough to guarantee that all the parts in your M1 rifle were manufactured at the same time as the receiver. According to Joe Poyer and Craig Riesch, authors of "The M1 Garand, to ," when scarce M1s were in demand as collector's items in the s and s, some "enterprising" gunsmiths used receivers that had previously been sold for scrap to assemble new M1s with parts from other rifles.
After much trial and error, an updated M1 was adopted in as the M14 Rifle. Although the M1 Garand was officially obsolete from that time forward, it remained in service around the world through the Viet Nam era. It was and is truly an amazing rifle, and its inventor John C. Garand ranks among the very best of patriots. History of the M1 Garand Rifle. History of the M1 Garand Rifle jonfrye T By Bob Seijas In , an American named Hiram Maxim invented the machine gun, a wonder of the age: a gun that used the power of the bullet to extract and eject the empty brass casing, feed another bullet into the chamber, recock thehammer, and fire again as long as there was ammunition.
Toggle Sliding Bar Area. Last official M1 Rifle produced [3] vs. Assembly of new rifles continued into including many National Match Rifles. Assigned [1] Serial Number Ranges :.
Year Contract. Springfield Armory. May July Rock Island Arsenal. The duplicate numbers were lined out and the substitute numbers electro-penciled under the original. Field Service Use. International Harvester. Not Assigned. Perhaps allocated for Beretta samples or experimentation?
NATO, Aug. The above worksheet provided by Timothy Traub. This seems to be about the time W. The 2. In addition, rifles in the 1. All of this supports the January date for the serial number range change.
Their serial number range is approximately to Springfield M1 production was resumed in with serial number 4,, leaving a gap of approximately ,xxx serial numbers.
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