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Dear CMP Family,

The CMP advises to not use .30/06 ammunition in M1 Garands, 1903s, and 1903A3s that is loaded beyond 50,000 CUP and has a bullet weight more than 172-174gr. These rifles are at least 70 years old and were not designed for max loads and super heavy bullets. Always wear hearing and eye protection when firing an M1 Garand, 1903 and/or 1903A3 rifle.

This warning is an update/addition to the Ammunition section in the Read This First manual enclosed with each rifle shipment (M1 Garand manual-page 6 and M1903 manual-page 10).

Civilian Marksmanship Program
 
Last Edited:
The CMP sent out an email warning last night. It reads:


Dear CMP Family,

The CMP advises to not use .30/06 ammunition in M1 Garands, 1903s, and 1903A3s that is loaded beyond 50,000 CUP and has a bullet weight more than 172gr. These rifles are at least 70 years old and were not designed for max loads and super heavy bullets. Always wear hearing and eye protection when firing an M1 Garand, 1903 and/or 1903A3 rifle.

This warning is an update/addition to the Ammunition section in the Read This First manual enclosed with each rifle shipment (M1 Garand manual-page 6 and M1903 manual-page 10).

Civilian Marksmanship Program


I recall in previous messages about M1 ammo, they specified not to shoot any ammo with heavier than 180 grain bullets or greater than 50,000 CUP. I guess they must be getting a lot of questions or incidents that prompt them to issue this warning again.

Stay Safe!
 
M1 definitely, but I had read that modern hunting was fine in the 03a3. Any thoughts?

This is what I'd heard. Using the higher pressures could damage the Op Rod on the Garand and cause battering. But the 03A3, as I understood, was plenty strong for hunting ammo. Personally, I have no need to push pressure limits on either rifle. And because I'm a wuss I will always use lighter bullets, nothing over 150gr.
 

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