This evening I was at the range and took my 22-250 with me to shoot along with a 30-06. I had to re-zero the 22-250 'cause I used that scope to work up a load for my new 300 WSM. Anyway, I was also interested to see what velocity I was getting with it. I'm shooting 40 grain V-Max over 41.5 grains of H380. I guessing it's about 4000 but want to make sure. Well, the Chrony wouldn't give me a reading on these. Any ideas why. Seems I tried this years ago, with another Chrony, and got the same results. I did shoot some larger 55 grain bullets over it and they registered but not these little and faster ones. I should point out that these are moly coated but can's see how that would make a difference. Anyway, any help would be