Seems the Flash has 38 ftp in .22 and 40 ftp in .25.. If the numbers are true.. You got plenty power to crack the shull in both cal...But the frontal area of the .22 is 2,25 x 2,25 x 3,14 .. 23,8 mm2.. The .25 has 31,7 mm2.. In other words. The .22 has about 20 percent more power per mm2 than...