is meant by the term triggerpull. tigger pull is the amount of force required to release the firing mechanism. and are you able to measure that with any particular firearm? yes. did you measure that with this firearm? i did. explain to the jury how you did that. are i hung a series of known weights from the shooting position of the trigger where the finger will rest, and i kept adding weights until the trigger was pulled and the hammer cocked and released. and what did you find when you measured the triggerpull? it was between 4.5 and 4 3/4-pound. is that within the manufacturer s specifications? yes, it is. did you also receive a fired cartridge case with this evidence? yes. how many? i received one fired cartridge case. your honor may i approach the witness? let me show huh state s 147, ask you if you you recognize that. i do.