The Firing Line Forums - View Single Post - Springfield 1903 rifle... help identify the markings?

Jim Watson · February 28, 2013, 11:11 PM

D4 is the steel lot number code.
It goes to late 1914 - early 1915.
It applies only to the bolt, not the action or whole rifle.

February 28, 2013, 11:11 PM	#17
Jim Watson Senior Member Join Date: October 25, 2001 Location: Alabama Posts: 18,537	D4 is the steel lot number code. It goes to late 1914 - early 1915. It applies only to the bolt, not the action or whole rifle.