I was recently gifted 100 cast GC bullets for my .44 magnum. They are 350 LBT and weigh out at 340 grains. I don't have any load data for this bullet in my books. I will be pushing them with WW296 and CCI 350 primers in my stainless 5 1/2" Redhawk. I'm currently thinking 19 grains would be about right. What does the cast bullet brain trust say?