Originally Posted by Nomercy448

Which "Judge Magnum" do you have? If you have the 513 Raging Judge Magnum, it's really a .454 Cassul with an extended cylinder for 3" .410 shells (assuming it's so labeled with .454/.45lc/.410). In that case, it can take anything up to SAAMI proofed .454 pressures. If it's a 4510, then it can only handle SAAMI .45LC loads.

Almost all of the Taurus revolver manuals that I have seen have listed that they are +P rated, but unfortunately, mine is a Raging Judge .454/.410, so I can't tell you what the 4510 model owners manual says.