7x338 Norma Imp with 50BMG powder help please.

[wadedc]

I am shooting a 7x338 Norma Imp and when I get pressure signs there is still lots of room in the case. What powder is slower than H50 BMG and readily available? Current load is 195 Berger over 87gr H50BMG.

Wade

 

[tim_w]

I would look at whatever powders the 7 Allen Magnum is using as they have even more case volume.

us869

VV20N29
Rel50


Honestly though that much case volume really needs a heavier bullet. 200 -250 gr