Jurors from the trial of Roger Stone testified in court Tuesday that they faced no pressure in their deliberations and each came to their conclusions independently, as the legal drama surrounding the case continued and Mr. Stone sought to convince a federal judge he deserves a new trial.

Two jurors said no one discussed outside materials as they weighed the evidence from the November trial, and said the forewoman had pushed jurors to consider all elements before reaching their conclusion to convict Mr. Stone. He was sentenced...