Does anyone know the rate of twist of the rifling in an M3 37mm barrel?
I've got a fired projectile, so I can count the number of lands and grooves as pressed into the driving band.
It has 12 lands and grooves pressed into the brass.
The grooves measure 5/16" and the lands 3/32"
Questions on M3 37mm rifling
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Andy Cole
- Sergeant Major of the Gee
- Posts: 477
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Questions on M3 37mm rifling
1943 Willys MB285433 D.O.D. 12-3-1943
1951 M100 trailer D.O.D. 3/51
1951 M37 Truck D.O.D. 5-28-1951
M3 37MM ATG
M3A4 Hand Cart
Wife D.O.Delivery 7-21-1979
Boy D.O.Delivery. 2-15-2007
Girl D.O.Delivery. 4-9-2009
Girl D.O.Delivery. 10-23-2012
1951 M100 trailer D.O.D. 3/51
1951 M37 Truck D.O.D. 5-28-1951
M3 37MM ATG
M3A4 Hand Cart
Wife D.O.Delivery 7-21-1979
Boy D.O.Delivery. 2-15-2007
Girl D.O.Delivery. 4-9-2009
Girl D.O.Delivery. 10-23-2012
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dpcd67
- G-General
- Posts: 11864
- Joined: Mon Jul 25, 2011 3:41 pm
- Location: Iowa
Re: Questions on M3 37mm rifling
I think it is one turn in 36 inches; a friend has a real one.
Books say 25 calibers; which is 37x25.
Books say 25 calibers; which is 37x25.
U. S. Army 28 years.
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