My current chronograph is from Caldwell. I use it mainly for verification on the consistency of velocities. I picked this one as it syncs via Bluetooth to my smart phone. I can observe each shot on the phone. The phone app allows me to save groups of shots into a file. It allows for deleting of a problem round It gives me my spread and SD. I can also attach a photo of my group to the file. I can record as many rounds as I wish to a file

Here is a screen shot of one of the files from my phone

[Linked Image]

An ad for my chrono

https://shop.brownells.com/shooting...msclkid=6034954b47c11458e438c8683fe545bd


In training to be an obedient master to my two labs

Shooting, fishing and hunting