The 240 XTP over 23.5grn H110/W296 is my "check load." I've fired it from over a hundred different firearms chambered for 44mag, and in general, if it doesn't shoot well, there's something going on with the rifle, not the load.
You must have, or know, a lot of people with 44 mags that trust you. I only have 9 people I load for. And only 2 besides myself have 44 magnums.