A rifle or shotgun aiming seat apparatus is portable, erectable on the ground and/or as part of a ladder or tree stand. The apparatus incorporates therewith a seat and a rifle-positioning cradle that enables the user to remain in position and simultaneously rotate and selectively and rapidly adjust the height, distance and angular orientation of the rifle barrel, depending on the shooting environment presented. Additionally, the frame structure of the apparatus is adapted to be adjusted and leveled as to sloping ground and enables a hunting blind be erected to hide the hunter while in position.