my dad is looking for a carbine semi auto 750 remington. i found a 742 looks to be in great condition, i know some have had issues with the 742 , i myself have owned a 7400 and 750 carbine both jammed . but i will say i never held a gun i liked more than those two and i have one thats never jammed even when i tried to jam it. never owned a 742 so i would like some input on them ? thanks