jaybo, I don't load on that press. That being said, throw 3-5 charges just to settle the powder in the hopper, dumping the powder back in the hopper. Be sure to use the same stroke you would use when actually loading. Then, throw 10 charges onto your scale, again using a consistant stroke. Measure the total weight of those 10 charges and divide by 10. That is what your disk/bushing is delivering for that particular powder.
For future reference, make sure you notate your disk/bushing number, powder and delivered weight in your reloading data logbook. I guarantee you that some day you will want to recall that information.