A system (500; 700) for configuring a reticle display field of an aiming device (100; 102; 200; 508; 702; 800; 1300), the reticle display field comprising a reticle that is visible to a user when viewing through the aiming device, the aiming device including a housing (104; 708) defining an objective portion (116; 1304) and an eyepiece portion (124; 1308), the aiming device configured to present a down-range image and the reticle display field through the eyepiece portion (124; 1308) and configurable between a plurality of magnification settings for magnifying the down-range image to a user, the system comprising: a display device (164; 176; 864; 1316) configured to display a digital reticle image in the reticle display field, the digital reticle image including a first digital reticle portion; a magnification sensor configured to produce an output signal that indicates a magnification setting for the aiming device (100; 102; 200; 508; 702; 800; 1300); a processor (204; 604); and a non-transitory computer readable storage medium (208; 608), the computer readable storage medium including instructions executable by the processor to cause the processor (204; 604) to: receive a first output signal from the magnification sensor, the first output signal corresponding to a first magnification setting for the aiming device (100; 102; 200; 508; 702; 800; 1300); determine, using the first output signal, the first magnification setting; characterised in that the instructions executable by the processor furthermore cause the processor (204; 604) to: determine an expected engagement range for the first magnification setting and an expected engagement range for the first digital reticle portion, the expected engagement range being a range at which target engagement is expected to occur using the aiming device (100; 102; 200; 508; 702; 800; 1300); determine that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap; and in response to determining that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap, display, using the display device (164; 176; 864; 1316), the first digital reticle portion in the reticle display field. a display device (164; 176; 864; 1316) configured to display a digital reticle image in the reticle display field, the digital reticle image including a first digital reticle portion; a magnification sensor configured to produce an output signal that indicates a magnification setting for the aiming device (100; 102; 200; 508; 702; 800; 1300); a processor (204; 604); and a non-transitory computer readable storage medium (208; 608), the computer readable storage medium including instructions executable by the processor to cause the processor (204; 604) to: receive a first output signal from the magnification sensor, the first output signal corresponding to a first magnification setting for the aiming device (100; 102; 200; 508; 702; 800; 1300); determine, using the first output signal, the first magnification setting; characterised in that the instructions executable by the processor furthermore cause the processor (204; 604) to: determine an expected engagement range for the first magnification setting and an expected engagement range for the first digital reticle portion, the expected engagement range being a range at which target engagement is expected to occur using the aiming device (100; 102; 200; 508; 702; 800; 1300); determine that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap; and in response to determining that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap, display, using the display device (164; 176; 864; 1316), the first digital reticle portion in the reticle display field. determine an expected engagement range for the first magnification setting and an expected engagement range for the first digital reticle portion, the expected engagement range being a range at which target engagement is expected to occur using the aiming device (100; 102; 200; 508; 702; 800; 1300); determine that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap; and in response to determining that the expected engagement range of the first digital reticle portion and the expected engagement range of the first magnification setting at least partially overlap, display, using the display device (164; 176; 864; 1316), the first digital reticle portion in the reticle display field.