its isomers or 1 kilogram or more of a mixture or substance containing a detectable amount of methamphetamine, its salts, isomers, or salts of its isomers” are subject to a ten-year mandatory minimum sentence. 21 U.S.C. § 841(b)(l)(A)(viii). This mandatory minimum statute, unlike the Sentencing Guidelines, does not differentiate between d-methamphetamine and 1-methamphetamine. See United States v. Maza, 93 F.3d 1390, 1400 n. 4 (8th Cir.1996), cert. denied, — U.S. -, 117 S.Ct. 1008, 136 L.Ed.2d 886 (1997). When “a statutorily required minimum sentence is greater than the maximum of the applicable guideline range, the statutorily required minimum sentence shall be the guideline sentence.” U.S.S.G. §. 5Gl.l(b). See also United States v. Stoneking, 60 F.3d 399, 402 (8th Cir.1995) (en banc) (<HOLDING>), cert. denied, 516 U.S. 1119, 116 S.Ct. 926,
recognizing the conflict holding that when a statute and a guideline conflict the statute controls holding that under such unique circumstances the five 5 year statute of limitations controls recognizing that a specific statute controls over a general one recognizing conflict