There are many types of magazines for the Ruger 10/22.
 The standard 10/22 ships with a black 10-round polymer rotary magazine, the BX-1.
 Ruger has also introduced a transparent polycarbonate version ("40th-anniversary edition") of the BX-1 called the BX-1CLR, as well as a 1-round version for training and a 5-round version for states or countries that restrict magazine capacities.
 In 2011–2012, Ruger came out with the BX-25, a curved 25-round box magazine with a black composite frame and steel feed lips, as well as the 15-round BX-15 box magazine for states that restrict magazine capacities.
 Aftermarket options include 25-, 30-, and 50-round box magazines; 50-round teardrop-shaped rotary magazines, and 50- and 110-round drum magazines.

The standard BX-1 rotary magazine stores the cartridges in a cogwheel-like holder, rather than stacked as seen in a box magazine.
 This allows the magazine to be very compact and fit flush into the rifle without protruding from the stock at the natural balance point for one-handed carry.
 The bolt of the rifle pushes a cartridge from the metal feeding lip of the magazine with each shot, allowing the next cartridge to feed into place.
 Due to its time-tested reliability, the rotary magazine is also used by the Ruger's American Rimfire series bolt-action rifles, as well as the 10/22-footprinted "Summit" toggle-action rifles produced by Primary Weapon Systems/Vorquartsen.
 Even Ruger's market competitor Savage Arms has recently adopted a detachable rotary magazine design similar to the BX-1 in its new A series (semi-automatic) and B series (bolt-action) rimfire rifles.

Not all Ruger 10/22 magazines are interchangeable.
 The owners manual for the 10/22 Magnum model states, "Do not attempt to use standard 10/22 magazines in the 10/22 Magnum rifles or load .22 Short, Long, or Long Rifle ammunition into the .22 Magnum.
 They will not function correctly and are unsafe to use in .22 Magnum rifles."
 It goes on to say, "Never attempt to use .22 Long Rifle ammunition in Ruger 10/22 Magnum rifle magazines.
 The cartridges have a smaller case diameter and can split or burst when fired in the larger magnum chamber, releasing hot powder gasses and particle fragments out of the action at high speed, possibly resulting in injury to the shooter or bystanders."
There are many types of magazines for the Ruger 10/22.  The standard 10/22 ships with a black 10-round polymer rotary magazine, the BX-1.  Ruger has also introduced a transparent polycarbonate version ("40th-anniversary edition") of the BX-1 called the BX-1CLR, as well as a 1-round version for training and a 5-round version for states or countries that restrict magazine capacities.  In 2011–2012, Ruger came out with the BX-25, a curved 25-round box magazine with a black composite frame and steel feed lips, as well as the 15-round BX-15 box magazine for states that restrict magazine capacities.  Aftermarket options include 25-, 30-, and 50-round box magazines; 50-round teardrop-shaped rotary magazines, and 50- and 110-round drum magazines.
The standard BX-1 rotary magazine stores the cartridges in a cogwheel-like holder, rather than stacked as seen in a box magazine.  This allows the magazine to be very compact and fit flush into the rifle without protruding from the stock at the natural balance point for one-handed carry.  The bolt of the rifle pushes a cartridge from the metal feeding lip of the magazine with each shot, allowing the next cartridge to feed into place.  Due to its time-tested reliability, the rotary magazine is also used by the Ruger's American Rimfire series bolt-action rifles, as well as the 10/22-footprinted "Summit" toggle-action rifles produced by Primary Weapon Systems/Vorquartsen.  Even Ruger's market competitor Savage Arms has recently adopted a detachable rotary magazine design similar to the BX-1 in its new A series (semi-automatic) and B series (bolt-action) rimfire rifles.
Not all Ruger 10/22 magazines are interchangeable.  The owners manual for the 10/22 Magnum model states, "Do not attempt to use standard 10/22 magazines in the 10/22 Magnum rifles or load .22 Short, Long, or Long Rifle ammunition into the .22 Magnum.  They will not function correctly and are unsafe to use in .22 Magnum rifles."  It goes on to say, "Never attempt to use .22 Long Rifle ammunition in Ruger 10/22 Magnum rifle magazines.  The cartridges have a smaller case diameter and can split or burst when fired in the larger magnum chamber, releasing hot powder gasses and particle fragments out of the action at high speed, possibly resulting in injury to the shooter or bystanders."
Ruger 10/22