i've got 2 of them. the first one i bought and put on my izh .22 target pistol about 3 yrs ago. i shoot in a winter league every thurs nite and try to get out once a week to practice. i have a 260 avg and have never had any problems with it. (except when i left it on for a week. wish it had a auto shutoff)
i liked it some much i put one on my izh 53m air pistol. at 25 feet off a rest i can hit a 3/8 dia target all day.
but i must agree i dont think it would last 3 shots on my 44 or shotgun