Magazine for compressed gas single-shot bolt-action pellet shoulder guns

A gravity operated magazine for loading pellets into rifles and smooth barrel shoulder guns of the single shot type that use pellets as projectiles and shoot said pellets through a bore through said barrel along an axis, that further have loading mechanisms which include a bolt, that use as pellet propellant either compressed air (precharged or provided by a pump) or carbon dioxide cartridges, said magazine comprising:

• a plate block of thickness larger than the length of said pellets, said block having three channels, said channels having their long axes parallel to said plate block's two largest surfaces, said channels being of a width larger than the caliber of said pellets, two of the three said channels being pellet reservoir channels, the third of said channels being a pellet chute channel, one first end of a first pellet reservoir channel being connected to one first end of the second pellet reservoir channel, the second end of the first pellet reservoir channel being closed, the second end of the second pellet reservoir channel being open, the two connected ends of the pellet reservoir channels being further connected to one first end of the pellet chute channel, the second end of the pellet chute channel being open;
• two cover plates, one first surface of one first cover plate being attached to one first surface of the two largest surfaces of said block, one first surface of the second cover plate being attached to the second of the two largest surfaces of said block, said two pellet reservoir channels and said cover plates forming two pellet reservoir ducts, said pellet chute channel and said cover plates forming one pellet chute duct, said reservoir ducts and chute duct being able to contain one rifle pellet or a plurality of rifle pellets lying side by side to each other, said pellets being free to roll along inside said reservoir ducts and chute duct propelled by gravity, the open end of the second pellet reservoir channel and the cover plates forming a magazine filling hole allowing said magazine to be filled with pellets through said magazine filling hole, the open end of the pellet chute channel and the cover plates forming a magazine's rifle loading hole, allowing said pellets to be loaded from said magazine into the breech of said rifle through said magazine's rifle loading hole, the edges of the cover plates adjacent to said magazine's rifle loading hole being shaped into two identical arcs encompassing approximately 180 degrees, the arcs further having diameters of dimensions as required to seat snugly said arcs on the exposed lateral surface of said rifle's bolt adjacent to said rifle's breech when said bolt is in closed position, thus enabling said bolt to close said magazine's rifle loading hole when said bolt is in closed position;
• a means for attaching said magazine to the breech of said rifle, causing a plane parallel to the axes of said reservoir ducts and chute duct to lie perpendicularly to the rifle's bore axis, further causing said magazine's rifle loading hole arcs to seat on the exposed lateral surface of the rifle's bolt when said bolt is in closed position;
• and
• a means for opening or closing said magazine filling hole.