As Josh3rd said, they are not new. The name is confusing given the existence of the FTT/FTS twins. The Field Target was discontinued in .22 cal several years ago while the .177 continued production. Beeman also sold the .22 Field Target as their own .22 Ram Jet pellet. The .177 Ram Jet was a different pellet than the .177 Field Target, just to add to the confusion. The Field Target design was sold at least back in the mid-90s. A couple of my airguns shoot them well, others don't.
Paul in Liberty County