QF 3 inch 20 cwt 1914 TIME_TO_FT_(M)_AT_25°_(SECONDS) 8.3
QF 3 inch 20 cwt 1914 SHELL_(LB) 12.5
QF 3 inch 20 cwt 1914 MAX._HEIGHT_(FT) 23500
Where the height range is higher than 20000.0 and the shell weight is 12.5, 8.3 is the time to feet ratio at 25 degrees.