Modular shooting range

A firing tube for use in a shooting range comprising a generally tubular liner of metal sheet material, and panels for forming an outer sleeve completely encircling said liner, said liner having stiffeners projecting outward therefrom for supporting said panels spaced from the tube of said liner leaving room for filler material between said sleeve and said tube, and said liner including laterally spaced, upright sidewalls, integral flanges bent inward from the lower portions of said sidewalls, respectively, a floor plate for resting on said flanges and a ceiling extending generally between the upper portions of said sidewalls.

A firing tube for use in a shooting range comprising an elongated, generally tubular inner liner, a plurality of stiffening frames spaced longitudinally of said liner and each closely encircling said liner, an outer sleeve having panels supporting on said frames so as to be spaced outward from said liner, and a layer of filler material between said sleeve and said liner and encircling said liner, and including a panel supporting plate attached to an edge of one of said stiffening frames remote from said liner so as to form a flange projecting longitudinally of said liner and spaced outward therefrom, a panel of said sleeve having an end margin engaged against the inner side of said flange.

A firing tube for use in a shooting range comprising an elongated, generally tubular inner liner, a plurality of stiffening frames spaced longitudinally of said liner and each closely encircling said liner, an outer sleeve having panels supported on said frame so as to be spaced outward from said liner, a layer of filler material between said sleeve and said liner and encircling said liner, and means for supporting said liner and said sleeve spaced above the ground, said liner and said sleeve having registered apertures through the bottoms thereof for forming a vent opening through the bottom of the tube.

A shooting range comprising a range master station and several elongated firing tubes extending generally radially from the range master station.

A firing tube for use in a shooting range comprising a generally tubular liner of metal sheet material and panels for forming an outer sleeve completely encircling said liner, said liner having stiffeners projecting outward therefrom for supporting said panels spaced from the tube of said liner leaving room for filler material between said sleeve and said tube, said liner including at least one longitudinally-extending welded seam and said stiffeners including corresponding stiffener plates each extending transversely of the length of said liner continuously and unbrokenly over said seam.