It’s a common misconception that anything over 14,000 psi is a “Ruger only” load. N frame Smith and Wessons can handle the same 23,000 psi as .45 ACP +P. Case head thrust is about 2/3 of .44 Magnum.
@jesseboutdoors 7.5 and 8 grains would be fine for the ruger new vaquero. That beast your holding could handle some very stout loads. Good content in your video.