McCDig
Silver Member
- Joined
- Jan 31, 2015
- Messages
- 3,753
- Reaction score
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- Golden Thread
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- Location
- Baltimore, Maryland
- 🥇 Banner finds
- 1
- Detector(s) used
- Fisher F75
- Primary Interest:
- Metal Detecting
Was on a hunt yesterday evening in Harford County, Maryland and was searching a slope just off a parking lot. I recovered a Lesney Porche and then my next target was this live ordnance. It's base is 29 mm in diameter and the casing is 107 mm long. The projectile appears to be iron but has deteriorated. The markings at the collar by the projectile reads "PPN 15-3 54 20 MM" and "T312E1". The pictures and details I found online show the one I dug to be similar. The reference projectile was tested at Aberdeen Proving Ground in Harford County. It could be that the person who owned the property had access to this through employment at APG and brought it home. My eldest son let me know that it is illegal to possess this type of ammunition. I have a friend who works for Baltimore County Hazardous Devices Team who can dispose of this properly.



Remarks:
The T221E2 round has the T312E2 projectile fitted, which has a Modified Nose-adapter Juncture. The Tracer cavity remained unfilled for testing. Tests for this round were conducted at Aberdeen proving ground, MD, USA
The ammo-code PPN was used by PANTEX MFG CORP in the late 50’s. Not to be mistaken by the current user of the PPN code “Penland Paper Converting Corp.- WASHINGTON PLANT




The T221E2 round has the T312E2 projectile fitted, which has a Modified Nose-adapter Juncture. The Tracer cavity remained unfilled for testing. Tests for this round were conducted at Aberdeen proving ground, MD, USA
The ammo-code PPN was used by PANTEX MFG CORP in the late 50’s. Not to be mistaken by the current user of the PPN code “Penland Paper Converting Corp.- WASHINGTON PLANT
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