Abstract: A rifle receiver arrangement including a hollow chamber with a silt to receive an end of a rifle barrel. A slit opening/closing arrangement including an abutment member to abut against a rotatable bolt once the rotatable bolt is rotated in a second direction beyond a first open position such that upon abutment between the rotatable bolt and the abutment member, further rotation of the rotatable bolt in the second direction increases the gap of the slit of the hollow chamber to provide an extended open position to allow the end of the rifle barrel to be accepted less restrictively into the hollow chamber.

Abstract: A rifle receiver arrangement including a hollow chamber with a silt to receive an end of a rifle barrel. A slit opening/closing arrangement including an abutment member to abut against a rotatable bolt once the rotatable bolt is rotated in a second direction beyond a first open position such that upon abutment between the rotatable bolt and the abutment member, further rotation of the rotatable bolt in the second direction increases the gap of the slit of the hollow chamber to provide an extended open position to allow the end of the rifle barrel to be accepted less restrictively into the hollow chamber.

Abstract: Provided is a centerfire rifle cartridge. A case has a head end, an open mouth end for receiving a projectile, and a central axis. The head end has a base portion substantially conforming to that of a .50 BMG cartridge. The case has a case wall with a taper of up to 1.0° relative to the central axis. A frusto-conical shoulder portion extends from the case wall and has an angle of approximately 40° relative to the central axis. A neck portion extends from the shoulder portion and has a mouth sized to receive a .375 caliber (9.5 mm) projectile.

Abstract: Disclosed is a hybrid lamp assembly (44) which includes a substantially parabolic primary reflector (12) having an open end (20) and a circumferential mounting member (54) extending outwardly from the open end (20) of the primary reflector (12). A primary light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (46), comprising a plurality of LED lamps (48) and a plurality of substantially parabolic reflectors (50) associated with the plurality of LED lamps (48) and configured to project secondary light beams, is positioned circumferentially around the open end (20). The LED lamps (48) each are mounted to project light directed by the secondary reflector (50) with which it is associated. Upper and lower reflectors (50a, 50b) project light beams substantially parallel to the beam of the primary light source (14) and lateral reflectors (50c-j) are angled inwardly in a horizontal plane to project light beams that cross the beam of the primary light source (14).

Abstract: Disclosed is a hybrid lamp assembly (44) which includes a substantially parabolic primary reflector (12) having an open end (20) and a circumferential mounting member (54) extending outwardly from the open end (20) of the primary reflector (12). A primary light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (46), comprising a plurality of LED lamps (48) and a plurality of substantially parabolic reflectors (50) associated with the plurality of LED lamps (48) and configured to project secondary light beams, is positioned circumferentially around the open end (20). The LED lamps (48) each are mounted to project light directed by the secondary reflector (50) with which it is associated. Upper and lower reflectors (50a, 50b) project light beams substantially parallel to the beam of the primary light source (14) and lateral reflectors (50c-j) are angled inwardly in a horizontal plane to project light beams that cross the beam of the primary light source (14).

Abstract: Disclosed is a hybrid lamp assembly (10) which includes a substantially parabolic reflector (12) having an open end (20) and a circumferential mounting member (18) extending outwardly from the open end (20) of the reflector (12). The mounting member (18) presents a plurality of nonparallel mounting surfaces (22). A primary, non-LED light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (24), comprising a plurality of LED lamps (26), is positioned circumferentially around the open end (20) on the mounting surfaces (22). The LED lamps (26) are each mounted to project in a direction (42) substantially normal to the surface on which it is mounted.

Abstract: Disclosed is a hybrid lamp assembly (10) which includes a substantially parabolic reflector (12) having an open end (20) and a circumferential mounting member (18) extending outwardly from the open end (20) of the reflector (12). The mounting member (18) presents a plurality of nonparallel mounting surfaces (22). A primary, non-LED light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (24), comprising a plurality of LED lamps (26), is positioned circumferentially around the open end (20) on the mounting surfaces (22). The LED lamps (26) are each mounted to project in a direction (42) substantially normal to the surface on which it is mounted.

Abstract: A spotlight with adjustable focusing that can be held in a fixed position. The reflector has a hub which screws on over the bulb holder which is supported by the light handle. The outer side of the hub has alternating ridges and valleys. A detent is attached to the handle and fits into any valley which might be selected to hold the light in a fixed focusing position. The light can be secured to adjustable rifle telescope studs.