I use my chorny for is to make sure my loads and technique is consistent, if all it gave was the standard deviation of my strings I would be happy.
I do recommend a crony that has a remote or a remote capability if you will be shooting at a range where there are multiple shooters. I use a CE Prochrono with the optional interface cable that hooks it into a laptop.Lets you control the chrony, puts all the info on screen where you can see it plus lets you save it to a test file if you want.
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