I've made a decision on calibre for this second double rifle, subject to there being no surprises when I revisit the Heym factory next month.

I'm going with the .375 Flanged Magnum.

Reasons? Quite a few. None of them substantial but combined they tip the balance.

1 - A little faster than the 9.3x74R making it a touch flatter shooting.
2 - Good bullet choice for reloading.
3 - It could be used in Africa for tough stuff, if required.
4 - I really want a gun in this calibre

I think that's about it