Thanx Guys for all the info, I have seated the heads deeper by 0.5mm and the denting of the cases on the shoulders has stopped completely. I was a bit afraid to up the load as the primers was pretty flat and showing cratering around the dimple. This is still weird as the load is at 40gr.
Thanx
Hi, I have reloaded some rounds and after firing 10 rounds I saw that all the shoulders had some dents.
The first 5 rounds were loaded with 40 grains and the second 5 was loaded with 41 grains of powder (Somchem S335).
Somchem specks are: 150gr PMP SP
Start 39.8 2 459 61.8
Max 44.2 2 795 63.2...