Looking for data for Retumbo with a 153gn SST for the 7mm wby mag. I have 1/2 lb of retumbo and am determined to find a use for it. I found published Nosler data for 150 gn and 160 gn partitions but these are compressed loads and the partition is is a lot shorter than the SST. Any info would be much appreciated. I'm looking at starting with 75.5gn and working up but I would sure feel better about it if I could find closer data. Thanks for looking.