Just shoot the ones you have, they will be fine.
I have done considerable amount of testing with the 44 mag, about 4 different revolvers and two Marlin rifles, with 240 grain bullets.
24 grains is the usual full power load and all you need are standard pistol primers.
Testing in the rifle made it easier to see which were the most accurate loads. In looking at my notes, from both revolvers and rifle, I have tested from 17 grains to 25 grains of H110. Generally, the highest loads were pretty consistent in accuracy, but one of my tests at 17 grains showed about as accurate as any.
On the chronograph H110 or Win 296, all had quite large spreads, from high to low.
That was shy I settled on the original load that Elmer Keith designed for the 44 mag, 22 grains of 2400 powder, standard primers and 240 grain bullets.
For a medium load, maximum of about 1,000 fps, Winchester 231 is extremely accurate.