Yep. Been there done that with my first chronograph many years ago. One of those F1 red metal ones with the cardboard sun shades. Found how quickly those little plastic .30 cal sabots deviate from line of bore. They made pretty little star shaped holes in the card board at 5 yards from the muzzle. Lucky no damage to the important bits. I might have a go at 200 or 300 yards when my new Superchrono turns up as I should be able to put it well out of harms way.
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