SteveB. My load is 49 gn of H4350 (actualy AR2209 which is identical powder but with a Hodgdon label). I have used up to 49.5gn with no problems, no sticky cases, but 49 was slightly more accurate.
You might ask how I fit this amount of powder into the case. You will have to use a fairly long narrow drop tube under a funnel and tap the powder pan on the funnel as you trickle it through, taking about 6 seconds or so to trickle it. This way will settle the powder lower in the case, try it if you havent already. I also went to Winchester cases which have slightly more volume than the Lapuas. My throat is a standard Palma chamber and BULLETS ARE MOLLIED.
Bullets were about 0.010" into the lands
49gn gave 2650 fps
49.5gns gave close to 2700fps in a 27" barrel SLIGHT primer cratering.
If I say that this load prefers PMC russian primers, people will poopoo it so I wont mention that.