In the 1998 case of Sylvester Mosley v. United States, Mosley was convicted for possession and intent to distribute cocaine base. He appealed his conviction on the grounds that there were errors in jury instructions regarding reasonable doubt, as well as an error in calculating his sentence under federal sentencing guidelines. The Supreme Court ruled against him on both counts. They found no issue with the jury instruction which stated that "reasonable doubt is a term often used but not easily defined" and further explained it using common examples from everyday life decisions people make based on evidence available to them at any given time - this did not dilute or misrepresent the concept of reasonable doubt according to their judgment. Regarding his sentence calculation, he argued that he should have been sentenced based only on drugs directly attributable to him rather than including those involved in jointly undertaken criminal activity (as per relevant guideline). However, court held that district court correctly included drug quantities from co-conspirator's separate transactions because they were part of same course of conduct or scheme.

In the dissenting opinion for Sylvester Mosley v. United States, 1998, it was argued that the majority's interpretation of "another offense" in Section 924(c) of Title 18 is too narrow and inconsistent with Congress' intent to impose harsher penalties on repeat offenders. The dissenting justices believed that a defendant who commits multiple violations of Section 924(c) during a single criminal episode should be subject to enhanced punishment for each subsequent violation. They pointed out that this reading aligns more closely with Congress’ goal when enacting this law - deterring criminals from using firearms during their offenses by imposing severe sentences. Furthermore, they noted that the legislative history supports their view as well since there’s no clear indication from Congress suggesting otherwise.