Thread: Chronograph
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Old November 10, 2009, 07:42 AM   #11
darkgael
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Join Date: February 9, 2006
Location: Homes in Brooklyn, NY and in Pennsylvania.
Posts: 5,473
chrono

At least 10 feet. Shooting BP or a sub, maybe you'd want 15 to 20.
That three foot distance was asking for trouble.
The photocells are quite sensitive and will read the muzzle blast as well as the bullet if too close.
Aim for and shoot through the widest part of the window.
Pete
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