I think this could be an interesting thread.
I'm just wondering what is the calibre that you want the most?
The calibre must fit into the Irish laws eg no more than .30 cal so all the talk of .338's is gone out the window

Would you choose a calibre that you mostly have to load for?
(Lets imagine that reloading was in place for this thread)
For me I would love a 6.5x47. There is just something about it that I really like.
Lately I have been looking up about the 6XC. Lots of energy and good out to long ranges. There is a few ways you can form the brass. You can use a 22.250 case and change the shoulder angle with a .308 FL sizing die and then opening out the neck to allow the 6mm heads. I believe only Norma make brass for this calibre so its a toss up between buying it straight or doing a little extra work to get .22-250 brass fire formed.
I have also been looking at the .260. It is a .308 case necked down to 6.5.
This also looks to be a really good calibre. Also because .308 is very popular brass would be cheap.
Let's hear what ye dream of getting.

From L-R: 6mm BR, 6x47 Swiss Match, 6.5x47 Lapua, 6XC, and .260 Rem