Chronographs ?

I use a CE ProChrono DLX that I can bluetooth to my phone and record the data. Competitive Electronics or Caldwell are the most common. There's no rocket science in them, just get one that has the features you want. I got a cheap tripod off Amazon to mount it on, and I was setup.

randyxx75 said:

I don't use mine much anymore, maybe 5-6 times a year...
I used it more for reloaded ammo than bow stuff, but it is nice to have to compare arrow component changes such as heavier inserts, and broadheads or heavier shafts on my crossbows and verts.

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+1 ☝