Abstract: A self-healing reactive target includes a target apparatus and a target holder. The target apparatus is a solid one-piece target apparatus made from a self-healing material. The target holder is configured to hold the one-piece target apparatus. The target holder is made from a tear resistant and self-healing material. Wherein, the solid one-piece target is configured to move about the target holder for providing reactive feedback when shot. Wherein the solid one-piece target apparatus is configured to spin within the target holder for providing instant feedback when shot.

Abstract: A self-healing reactive target includes a target apparatus and a target holder. The target apparatus is a solid one-piece target apparatus made from a self-healing material. The target holder is configured to hold the one-piece target apparatus. The target holder is made from a tear resistant and self-healing material. Wherein, the solid one-piece target is configured to move about the target holder for providing reactive feedback when shot. Wherein the solid one-piece target apparatus is configured to spin within the target holder for providing instant feedback when shot.

Abstract: A self-healing reactive target includes a target apparatus and a target holder. The target apparatus is a solid one-piece target apparatus made from a self-healing material. The target holder is configured to hold the one-piece target apparatus. The target holder is made from a tear resistant material. Wherein, the solid one-piece target is configured to move about the target holder for providing reactive feedback when shot. Wherein the solid one-piece target apparatus is configured to spin within the target holder for providing instant feedback when shot.

Abstract: A device for use with a gas flow meter for automatically averaging the temperature of a gas flow with respect to its volume, includes a temperature sensing device for sensing the temperature of the gas flow through the flow meter and means responsive to the output of the temperature sensing device for deriving an output signal representing the temperature recorded by the device at any instant. Successive flow signals from the flow meter each representing the flow of a predetermined volume of gas are totalled in a first summing means, and the output signal derived from the temperature sensing device is entered into a second summing means whenever a flow signal is entered into the first summing means such that the second summing means totals successive temperature signals.