Jeromy Shawn Hamilton appeals the sentence that he received after he pleaded *987 guilty to conspiracy to distribute and to possess with intent to distribute 500 grams or more of methamphetamine. 21 U.S.C. §§ 841(a), 846. Hamilton argues that the method used by the Drug Enforcement Agency’s chemist for testing the purity level of the mixtures of methamphetamine was not sufficiently reliable. Hamilton’s reliance on the chemist’s testimony in another case is unavailing. Hamilton has failed to show that the district court erred when it attributed 255.7 grams of Methamphetamine (actual) and 27.2 grams of “ice” to him. See United States v. Medina, 161 F.3d 867, 876 (5th Cir. 1998); United States v. Lowder, 148 F.3d 548, 552 (5th Cir. 1998).

AFFIRMED.