Can anyone tell me that has used Retumbo for .338 Lapua loads what the starting and max. grains of powder are listed in the Hodgden reloading manual. I am thinking about trying some Retumbo with 250 grain Sierra Matchkings and 250 grain Lapua Scenars. I also would like to try this powder with 300 grain Matchkings. I assume that the max. loads are compressed? If anyone can help me out I really would appreciate it.