Yikes, some crosshair cursors is much less ludicrous than some neat crosshair cursors.
Transparent crosshair image is a free transparent clipart image selected by Jerk cliparts.
The resolution of the first clip art image is 500 x 500 px
and classified to Transparent crosshair png, Crosshair transparent.
Try search service at Jerk cliparts and you can quickly find more transparent background
images related to transparent crosshair image.