Barrel Length (inches)	Trial 1 (seconds)	Trial 2 (seconds)	Trial 3 (seconds)	Average (seconds)
72	5.28	5.4	5.48	5.39
66	6.91	6.53	6.82	6.75
64	6.54	7.05	7.22	6.94
62	7.06	6.89	7.06	7
60	7.59	7.13	6.97	7.23
54	6.96	6.63	6.9	6.83
48	5.2	6.46	6	6.22
42	6.23	6.04	6.28	6.18

Barrel Length (inches)	Trial 1 exit velocity (m/s)	Trial 2 exit velocity (m/s)	Trial 3 exit velocity (m/s)	Average exit velocity (m/s)
72	25.9	26.5	26.9	36.4
66	33.9	32	33.4	33.1
64	32	34.5	35.4	34
62	34.6	33.8	34.6	34.3
60	37.2	34.9	34.2	35.4
54	34.1	32.5	33.8	33.5
48	30.4	31.7	29.4	30.5
42	30.5	29.6	30.8	30.3