A test apparatus determines the state of torsional balance of an elongate device about its longitudinal axis. It has a base plate, supporting two sets of longitudinally spaced-apart low-friction roller bearings. The second bearings are mounted on the base at a higher location than the first bearings. A support for the second bearings has a side opening to allow lateral movement of the device under test into engagement with the underside of the second bearings which resting on the upper side of the first bearings. The device under test may be a rifle or a golf putter, the barrel or shaft respectively of which is supported on the roller bearings of the first set and in contact with the underside of the second bearings. The device will rotate about the longitudinal axis if not balanced about the axis. It is very easy and convenient for the user to place the tube in the guide to check for balance whenever checking balance of the item. The side opening allows use with a variety of devices having irregular shapes along its length.

A test fixture for testing firearms or ammunition according to the present disclosure includes a base, a barrel retention assembly, a door, and a firing pin. The base includes a longitudinal channel. The barrel retention assembly is configured to support a firearm barrel in the longitudinal channel. The door is pivotably mounted to the base and is configured to move from a closed position contacting a rear face of the base to an open position spaced from the rear face of the base. The firing pin is supported in a housing. The housing is slideably supported within the base and is configured to move between a first position and a second position. The first position aligns the firing pin and a longitudinal axis of the barrel retention assembly and the second position provides access to the barrel retention assembly.

A test fixture for testing firearms or ammunition according to the present disclosure includes a base, a barrel retention assembly, a door, and a firing pin. The base includes a longitudinal channel. The barrel retention assembly is configured to support a firearm barrel in the longitudinal channel. The door is pivotably mounted to the base and is configured to move from a closed position contacting a rear face of the base to an open position spaced from the rear face of the base. The firing pin is supported in a housing. The housing is slideably supported within the base and is configured to move between a first position and a second position. The first position aligns the firing pin and a longitudinal axis of the barrel retention assembly and the second position provides access to the barrel retention assembly.

An action timer start switch, a breech block with an integral action timer start switch and a system for measuring internal ballistic data in a test weapon system are described herein. The action timer start switch includes a through-hammer adjustable contact having a first contact element and a contact switch supported on the breech block having a second contact element. The first contact element is adjustable for contacting the second contact element when the hammer is a position to generating a primer strike. The first contact element may be set by simply positioning the breech block in the in-battery position with the hammer in the ignition position and moving the adjustable contact relative to the contact switch through the breech of the universal receiver.

An action timer start switch, a breech block with an integral action timer start switch and a system for measuring internal ballistic data in a test weapon system are described herein. The action timer start switch includes a through-hammer adjustable contact having a first contact element and a contact switch supported on the breech block having a second contact element. The first contact element is adjustable for contacting the second contact element when the hammer is a position to generating a primer strike. The first contact element may be set by simply positioning the breech block in the in-battery position with the hammer in the ignition position and moving the adjustable contact relative to the contact switch through the breech of the universal receiver.

Disclosed is an extraction press assembly for facilitating removal of an object from a bore of a structure. The extraction press assembly comprises a coupling mount, a base plate, a support structure, and a press. The coupling mount can be configured to couple to the structure, thus securing the extraction press assembly to the structure. The base plate can be axially spaced from the coupling mount, and can support the press. The support structure can comprise axial extensions coupling the coupling mount to the base plate, and facilitating adjustment of the base plate (and thus the press) relative to the coupling mount. The press can be located between the coupling mount and the base plate and can be configured to expand and contract axially, and to exert a pressing force upon an extraction pole of an extraction pole assembly within the bore, which force is transferred to the object lodged within the bore. The press can be pivotally coupled to the base plate to rotate between a first position for extracting an object and a second position for accessing the bore.

A system and method for measuring, characterizing, and making recommendations for improving the performance of a shooter and one or more associated firearms. A data collection environment comprises an operator device and a server and data management module configured to receive and transmit one or more data sets over a network. A rig, which may be configured with sensors, may comprise a base assembly, a stock assembly, a grip/trigger assembly, a forend assembly a remote trigger assembly, and a safety lanyard assembly.

The inventive technology comprises a novel thermal indicator system that incorporates one or more thermogenic compounds that may be applied to a gun component and indicate the temperature of a gun component during and after use. This novel thermal indicator system may indicate the temperature at which the gun component will cause burns, is unsafe to store, or if a pre-determined threshold temperature has been reached resulting in a loss of firing accuracy, as well as imminent, or actual component failure.

An extraction system for removing an object from a bore, the extraction system comprising an extraction pole assembly comprising a plurality of extraction poles, each extraction pole having a proximal end and a distal end; and a plurality of centering couplers, each centering coupler of the plurality of centering couplers comprising a partial spherical outer surface sized to complement a diameter of the bore, a proximal end configured to couple to a distal end of an extraction pole, and a distal end configured to couple to a proximal end of the extraction pole. The extraction pole assembly can be operable with a press assembly comprising a clamp configured to secure to the structure having the bore, and an extendable member configured to provide an input force to an extraction pole of the extraction pole assembly.

Disclosed is an extraction press assembly for facilitating removal of an object from a bore of a structure. The extraction press assembly comprises a coupling mount, a base plate, a support structure, and a press. The coupling mount can be configured to couple to the structure, thus securing the extraction press assembly to the structure. The base plate can be axially spaced from the coupling mount, and can support the press. The support structure can comprise axial extensions coupling the coupling mount to the base plate, and facilitating adjustment of the base plate (and thus the press) relative to the coupling mount. The press can be located between the coupling mount and the base plate and can be configured to expand and contract axially, and to exert a pressing force upon an extraction pole of an extraction pole assembly within the bore, which force is transferred to the object lodged within the bore. The press can be pivotally coupled to the base plate to rotate between a first position for extracting an object and a second position for accessing the bore.