Don't believe it for a minute. Don't take my word for it, simply look at the content of the posts from avowed Calvinists. They NEVER begin with a quote from the Synoptic Gospels and then substantiate that with a citation of Paul, the lead with and substantiate almost exclusively with the letters of Paul. Taken out of the context of the Gospels the letters of Paul are manipulable and have been used to validate any number of heresies.
Further, the evidence that they don't believe in the consequences of works are apparent in how they reject the lessons of the Beatitudes.
As far as Paul goes, please show us where the church in Rome has denied Paul's letters were inspired by the Holy Spirit, and as such, are to be followed.
I think RCs dismiss Paul because they haven't even read Him. They appear to know nothing about the Bible other than the Beatitudes.
Their loss.