William J.R. Embrey, federal prisoner #87263-132, appeals the district court’s dismissal of his 28 U.S.C. § 2241 habeas corpus petition, which challenged his conviction for felony possession of a firearm in violation of 18 U.S.C. § 922(g). Embrey argues that his conviction was invalid under United, States v. Emerson, 270 F.3d 203 (5th Cir. 2001). He also cites various Supreme Court cases decided before he was convicted of the noted offense.

Although Embrey could proceed under 28 U.S.C. § 2241 if he demonstrated that 28 U.S.C. § 2255 relief was “inadequate or ineffective” under the latter statute’s “savings clause,” he has failed to make such a showing. See Reyes-Requena v. United States, 243 F.3d 893, 904 (5th Cir. 2001). Accordingly, the judgment of the district court is AFFIRMED.