Your gun may not shoot them as fast or slow as another gun. Headwinds
often loft a bullet, not push it down. I can't get CCI's tnt's 22 mags to match
my real world drops with chrono data, their charts or anyone elses. I used
SHOOTER's velocity correction and multiple bc entries in FTE to make it come
out right. So go out and get your real world data on a still day and stick with
it. And a 17 has the same energy (Is equal to) a 22 long rifle at
200 yards. They really run out of gas at 175 yards. But they do seem to stay
very accurate to 200.