This is right out of the manual they have listed online for an Accura. It even has a pic of a nitride and mentions the nitride finish so its rather current.
CVA in-line gun designated as a “Magnum” is 150 grains by volume. This maximum load is generally known as the “magnum” load and is best suited for pelletized powder due to the more efficient burning characteristics of the powder pellets. Magnum loads of loose powder may be shot but are not recommended because of their inefficient and incomplete burning of the powder.
Now come on, even Traditions specifically states that BH209 max is 120gr by volume in the Strikefire manual. Some of their manuals even list loose T7 as 130gr max. They also have the decency to list load data for several powders....It aint that hard for the "just a better gun" company to list safer load data in the manuals.