Personally,I don't see much promise in the load with groups averaging 2" to 3" compared to the factory load doing much better.It is quite possible that your gun simply doesn't like the bullet/powder combination.As for the 59.2gr load,I would not bet on pulling the third shot as the overal group size falls right in line with the other powder charges.Two shots will often fall close together,but it doesn't necessarily mean anything more than random luck.