Fun Reactive Targets: Sidewalk Chalk In A Bottle, And Some Air Pressure

For most gun owners, shooting never gets old, but sometimes, changing up what you shoot at can spice things up a bit.  Reddit user SP_OON, decided to make his own reactive targets from inexpensive and readily available materials.  He purchased some automotive tire valves, then fixed them to some screw-on bottle caps that fit used, plastic bottles.  He then added in a bit of colored sidewalk chalk into the bottle, then screwed on the valved cap and added a bit of air pressure through the valve.  The resulting bullet strike on each bottle sends up a very visible indicator that the target was hit.

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