This is an appeal by a federal prisoner from the denial of his motion, made under section 2255 of title 28, United States Code, to vacate and correct his sentence 1 on the ground that it had been based upon false information contained in a presentence report.

The sentencing judge also heard and denied the present motion. In doing so he expressly found that the assertions challenged as false had not “affected * * * [his] judgment as to the sentence which should be imposed” and that, upon present reconsideration of all relevant and proper information and circumstances, the sentence was appropriate and should stand. 2

These findings are unimpeached. Since the challenged matter played no *328 part in the judge's original determination of an appropriate sentence or in his subsequent reaffirmation of it, the prisoner’s complaint is groundless.

The order appealed from will be affirmed.