564 



Table XIV-A - Comparative damages -- baffled vs« unbaffled 

 Gauges mounted on steel ring; charge -to -gauge distance, h8 in. 



a/ Average of 2 diaphragms per shot. Corrected for distance and thick- 

 ness variation. 



b/ Result doubtful because of small damage. 



c/ Lot 3 and Lot k plates give different absolute values because they 

 differ in strength and thickness. 



