Since publishing on this site in my article on three methods to find most accurate loads, the opinion that less expensive chronographs probably would not be able to find speed nodes I have found that my cheap old "Chrony" is quite capable of doing so. The results of three series of 222 Rem. load tests each using different components mirrored the published results from the Labradar chronograph. The ladder tests shot simultaneously matched up with the speed nodes nicely. For this rifle at least, (a light barrelled Sako Vixen) the higher speed nodes produced very tight groups of 0.2 moa and under at 200m.