very clever Jan
i think with most sub-magnums, up to 1000m would be fine, it is very rare for us to shoot beyond that in gong comps
if you want to bring it up to kaitoke to do some destructive testing up to 200m I am happy to help. can shoot at it with 22LR, 223, 708 and 270
how does the sensor attach to the back of the plate ?
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