This article investigates the Red de Semillas Libres de Colombia [Colombian Network of Free Seeds] movement, since its inception to date (2013-2016). The study, developed within the framework of green criminology and with a focus on environmental justice, draws on ethnographic observations of Red de Semillas and semi-structured interviews with group members. I explore processes of repertoire appropriation developed by social movements. The main argument advanced is that the Red de Semillas experienced a case of ‘tactics rebound’, in which tactics deployed at the global level shaped local tactics, bringing a set of problematic consequences. The article starts by summarising key explorations of repertoires of contention and connecting them with framing theory propositions. My interest is to locate processes of tactic appropriation in the context of collective action frames. I situate this theory in a study of the organisation and the tactics it used to elucidate how the concept of ‘collective action frame hierarchies’ can be used to explain instances of ‘tactics rebounding’.