10-090 Garand Picture of the Day - more gas traps

[Mark in Rochester]

Army Maneuvers, Ft. Houston, Texas
Date taken: June 1939
Photographer: Thomas Mcavoy

Picture date 1939 - they are all Gas Traps

http://www.milsurps.com/images/imported/2010/04/91eb1c4b22e3665e_large-1.jpg

http://www.milsurps.com/images/imported/2010/04/7cd528102fd508f4_large-1.jpg

http://www.milsurps.com/images/imported/2010/04/479622ef9ae4c9d0_large-1.jpg

[ARCHER 9505]

Do any of you Garand History buffs have any thoughts on why John C. opted for the "Gas Trap" system rather than the already proven port and piston?

[Mark in Rochester]

Think that S.A. did not like the idea of a hole drilled in the barrel.