Marcus De Andre Preston, federal prisoner # 43672-037, appeals the district *463court’s dismissal of his 28 U.S.C. § 2241 petition. Relying on Descamps v. United States, — U.S. -, 133 S.Ct. 2276, 186 L.Ed.2d 438 (2013), Preston argues that the district court erroneously determined that one of his prior convictions was a crime of violence for purposes of U.S.S.G. § 4Bl.l(a), resulting in a higher advisory sentencing range under the Sentencing Guidelines.
The district court determined that because Preston was raising a claim of sentencing error rather than a challenge to the manner in which his sentence was being carried out, his claim was outside the scope of § 2241. The court also determined that Preston had not met the criteria for proceeding under the savings clause of 28 U.S.C. § 2255, which allows a federal prisoner to attack the legality of his conviction or sentence in a § 2241 petition if he can show that the remedies provided under § 2255 are “inadequate or ineffective to test the legality of his detention.” See § 2255(e).
A prisoner seeking to establish that his § 2255 remedy is inadequate or ineffective must make a claim (i) “based on a retroactively applicable Supreme Court decision which establishes that the petitioner may have been convicted of a nonexistent offense” that (ii) “was foreclosed by circuit law at the time when the claim should have been raised in the petitioner’s trial, appeal, or first § 2255 motion.” Reyes-Requena v. United States, 243 F.3d 893, 904 (5th Cir.2001). Descamps has no effect on whether the facts of Preston’s case would support his conviction for the substantive offense; therefore, it is not a retroactively applicable Supreme Court decision indicating that he was convicted of a nonexistent offense. See, e.g., Wesson v. U.S. Penitentiary Beaumont, Tex., 305 F.3d 343, 348 (5th Cir.2002) (per curiam). Moreover, claims relating to sentencing determinations do not fall within the savings clause and are not cognizable under § 2241, even where the petitioner asserts a “miscarriage of justice” or actual innocence relating to the alleged sentencing errors. See, e.g., Torres v. Young, 457 Fed.Appx. 427, 429 (5th Cir.2012) (per curiam); Bey v. Tamez, 453 Fed.Appx. 445, 446 (5th Cir.2011) (per curiam). Accordingly, the judgment of the district court is AFFIRMED.