I have owned 4-5 chrono's over the years, if they still made the screens I would probably still be using my Custom Chronograph (and I DON'T consider it primitive, John--sheesh).

I compared velocities of my LabRadar to my M35 most of one summer, and calculating for distance to muzzle they agreed within single digits all but for a few shots. One of those shots were about 35 fps difference though. Never did figure that out.

Also have compared my LabRadar to another one and they agreed with one another within single digits. These days I use my LabRadar a lot more than my M35, it's just so much easier, plus I can chronograph shots from prone position.

Casey

Not being married to any particular political party sure makes it a lot easier to look at the world more objectively...
Having said that, MAGA.