M1 Garand recoil energy gage

[IRON WORKER]

Gage for measuring receoil energy

[CCyooper]

Interesting. I wonder when it was developed? I don't recall seeing this one listed in Pyle's book and it is not listed in the 1946 ORD-SIP-S200 for the M1 Rifle.

[IRON WORKER]

Not sure,not much info on archives other than what's listed on picture.

[IRON WORKER]

Collection Number: 10.01/11.01.05-09602#7223-SA.1 Title: RECORDS OF THE SPRINGFIELD ARMORY : Records of the Research and Engineering Division Recoil Energy Fixture - M1 Rifle - To Obtain Operating Slide Recoil Energy Dates: 10 MAR 1950 Category: PHOTOGRAPH Location: BOX 096, FOLDER 02, NEG 7223-SA Physical Description: Close-up view of bolt/slide/trigger area of M1 rifle. Many of the metal components are etched with ID numbers. Full Text: Armories\Military weapons\Principal components analysis

[Garanditis]

Suspended rifle recoil test, M1 vs Recoiless gun: https://www.reddit.com/r/physicsgifs...nfantry_rifle/

[Phil McGrath]

Hummmm I wonder how it worked? looks like the op-rod handle pushes the ratcheting thing back.

[Garanditis]

Hummmm I wonder how it worked? looks like the op-rod handle pushes the ratcheting thing back.

And I was thinking it looks like that pin must get compressed and it might have calibration marks indicating lbs force?

[Phil McGrath]

And I was thinking it looks like that pin must get compressed and it might have calibration marks indicating lbs force?

I was thinking the pin is adjusted too make contact on the op-rod after the bolt unlocks or the notches are used for placement anywhere along the railing. That's what I was thinking, maybe the notches are for indicating force or the pin is somehow graduated for after contact/travel. Cool tool for sure, someone should revisit this project for the handloader ?

[Garanditis]

I've submitted a request for information to the Springfield Armory (museum) ... I'll share whatever response I get. I am curious.

[Orlando]

very interesting, thanks for posting

[Garanditis]

Initial response from SA Armory Museum Curator Alex MacKenzie:

"Hello,


Thanks for writing. All we have right now is a couple photographs. It seems likely these photos were taken for a report or other document, but what (or where) that is at the moment is unknown. I'll certainly keep my eyes peeled for a reference to it.

I hope that the pictures are helpful,"

... and attached were the two photographs from the OP above.

[IRON WORKER]

When I first viewed this I thought the sliding part of the gage may have been the pinion part of a moving rack and pinion set up .But upon closer look at the original photo the back side of the moving part also has a rack gear machined .So it appears that the moving part would be pre set at a desired location and secured ? I'm thinking now there may be something missing ,probably a gage that connected to the exposed plunger that measured lb force at different locations along the track cycle area .