Hello all, I am looking for people with hands on experiance with the improved version of the .338 norma mag. I am starting to get the pieces togather to build a rifle based around stiller tac338 actin combined with a krieger barrel with a 1 in 9.3 twist. I am looking at changing the shoulder angle to 35 degrees to minimise case growth and gain some more capacity with the idea of running H1000 powder and not dropping to much velocity. I am looking for information regarding your choice of powder and the performance achieved with 300gr projectiles and would been keen to know if H1000 is working in the improved case. Regards Trig.