So far, I’ve loved my CED M2 chronograph. However, yesterday, no matter how hard I tried, I simply couldn’t get it to read 9mm bb’s. Hell, I’ve measured .380 with no problems. It was overcast, so I tried with both the sky-screens on and off. I managed to get some of them to read, but in one set , out of 45 bullets, I read 2. Most of the time, it simply didn’t see jack squat. The others, I’d get an E0 error.
The chrony was set 7 feet behind the pistol, which should be far enough away so the muzzle blast didn’t affect it. The .45 and .38 Special read with minimal issues and those were before and after trying to read the 9mm respectively. I don’t have $80 to get the infrared screens, although I wouldn’t mind them so I could do this indoors at some point.
Any ideas what I should be looking for? I got 18 reads from one brand, 14 from another, and only 2 from the third.