Held: Under U.S.S.G. §6A1.3, sentencing court could consider unsworn statements in police report in imposing increased sentence based on determinations that defendant who pled guilty to being a felon in possession of a firearm also shot at police officers and attempted to kill his estranged wife; detail and internal consistency of the transcribed interviews with the officers regarding the fact of the shooting, together with the other corroborating material, including wife's testimony, provided sufficient indicia of the reliability of the officers' version of events recounted in the report.