Pottsy

"the only draw back with doing this way was I cant run anything over 293
which is not a really bad thing since the 9.3x64 seems to do best with 260+ Grain
bullets and seems to fall away at around 290+ grains."

I have to differ - the 9.3 x 64B is great with 320gn bullets - it adds additional punch
to the 286gn bullets.

The 320gn, although designed for a double rifle works well on large game incl DG.

It is not designed to shoot to 300 - 400 metres.

500 Nitro