Author Topic: 8" id 11" od BB mortar  (Read 1861 times)

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Offline smokemjoe

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Re: 8" id 11" od BB mortar
« Reply #30 on: July 18, 2010, 04:42:39 PM »
My saftey chamber is 5 in. x 6 in. rd. on the outside, 2.100 rd. hole x 2 in. deep with a 2 in. rd. ball radius in the bottom, With 4 oz. powder it is lever full, with a 14 pound ball, 400 yds is no trouble. 18 in. barrel. Joe