DesertRatR
New member
I generally chronograph (Chrony Beta model) in bright sunlight. I have rarely had an error reported. The other day I got out to the range about 2 hours before sunset and set the chrony up in a shadow. The range faces east and I was under the overhang. I was verifying a load I have chronographed previously, and that had produced very good results (45 LC, SD about 12 with ES maybe 30 or so). This time they were all over the map. Extreme spreads of over 200 fps and SD 70 or so. When I plotted up a historgram there was no consistency. Judging from how the gun felt, there was nothing unusual with the loads. When I got home I double checked my scale with cal weights. And also my powder throw. Nothing out of whack.
The chrony manual isn't real specific about low light. Does my experience sound consistent with low light behavior of the chrony?
The chrony manual isn't real specific about low light. Does my experience sound consistent with low light behavior of the chrony?