Re: H50BMG in .338 lapua Improved ???
My barrel is a Broughton 5C, 32 inches long. The load I have been using is 110 grains. It is slightly compressed since the powder comes up to the shoulder of the case and the bullet base ends up about a quarter of an inch below this point. So the load is compressed in the area occupied by the base of the bullet, but at the same time the powder is free to go into the space between the shoulder and the neck of the case, so compression is minimal. Still I would have to say load density is at least 100%
I load touching the lands. There are no pressure signs. Extraction is easy. And I have not encountered the fouling mentioned by some others.