145 F.3d 1347
98 CJ C.A.R. 2314
NOTICE:  Although citation of unpublished opinions remains unfavored, unpublished opinions may now be cited if the opinion has persuasive value on a material issue, and a copy is attached to the citing document or, if cited in oral argument, copies are furnished to the Court and all parties.  See General Order of November 29, 1993, suspending 10th Cir. Rule 36.3 until December 31, 1995, or further order.
UNITED STATES of America, Plaintiff-Appellee,v.David Lawrence WILSON, Defendant-Appellant.
No. 97-4196.
United States Court of Appeals, Tenth Circuit.
May 14, 1998.

Before ANDERSON, MCKAY and LUCERO, Circuit Judges.


1
ORDER AND JUDGMENT*


2
David Lawrence Wilson filed a pro se petition for writ of habeas corpus pursuant to 28 U.S.C. § 2255 in the United States District Court for the District of Utah alleging (1) that his present sentence has been improperly calculated by the Bureau of Prisons and (2) that this sentence was improperly enhanced by two earlier, unconstitutional convictions.  The district court, adopting the magistrate judge's Report and Recommendation, dismissed the petition for lack of jurisdiction.  Because the petitioner has made a substantial showing of the denial of a constitutional right, we grant a certificate of appealability.  See 28 U.S.C. § 2253(c)(2).


3
Petitioner pleaded guilty to a single count of attempted bank robbery in violation of 18 U.S.C. § 2113(a) and was sentenced to a 151-month term of imprisonment.  See United States v. Wilson, 10 F.3d 734, 735 (10th Cir.1993).  Petitioner's first claim is that the Bureau of Prisons has failed to credit him for 585 days spent in federal custody prior to this conviction.  Because this is an attack on the execution of the sentence rather than its validity, § 2255 relief is unavailable.  See United States v. Scott, 803 F.2d 1095, 1096 (10th Cir.1986); see also Bradshaw v. Story, 86 F.3d 164, 166 (10th Cir.1996).  Petitioner's claim would be properly addressed in a § 2241 habeas petition filed in the district where he is confined.  Scott, 803 F.2d at 1096.  This claim was therefore correctly dismissed without prejudice for lack of jurisdiction.


4
Petitioner also claims that his present sentence was improperly enhanced by prior, unconstitutional convictions in Florida and California.  The district court dismissed this challenge for lack of jurisdiction, interpreting the petition as an improper collateral attack on the Florida and California convictions.  As petitioner correctly notes, however, although a defendant may not challenge a fully-expired conviction in isolation, if the attack is directed at the sentence under which the defendant is in custody, "the defendant may argue that his present sentence is improper because it has been enhanced by a prior, unconstitutional conviction."  Gamble v. Parsons, 898 F.2d 117, 118 (10th Cir.1990); see also Collins v. Hesse, 957 F.2d 746 (10th Cir.1992).  Construed with the deference to which pro se litigants are entitled, appellant's habeas petition should be read "as asserting a challenge to his present sentence to the extent that it has been enhanced by the allegedly invalid prior conviction[s]." Gamble, 898 F.2d at 118.  The district court improperly dismissed the petition for lack of jurisdiction as to this claim.


5
We REVERSE the district court's dismissal of appellant's petition for habeas corpus and REMAND for further proceedings consistent with this order and judgment.


6
The mandate shall issue forthwith.



*
 The case is unanimously ordered submitted without oral argument pursuant to Fed.  R.App. P. 34(a) and 10th Cir.  R. 34.1.9.  This order and judgment is not binding precedent, except under the doctrines of law of the case, res judicata, and collateral estoppel.  The court generally disfavors the citation of orders and judgments; nevertheless, an order and judgment may be cited under the terms and conditions of 10th Cir.  R. 36.3


