I should mention that there are considerations other than just "what looks best on paper". If I don't use an 8mm bullet, I am going to have to get another barrel. Sort of. "You" may recall that I just purchased a 'bunch' (10) barrels from the bankruptcy auction of A-Square Bullets. Among those 10 barrels, (all pressure test barrels that are 2" in diameter at the breech and 1.25" at the muzzle), are FIVE in .416 caliber and one in .358. (The other four are .30-40 Krag, .303 British, .425 Express, and 20 ga shotgun.) So...
If I don't use a .416 or .358 bullet, I'll be looking for another barrel. Not TOO big of a deal, but since I can't find any A&B barrels any more, "cheap" 'has left the building'.
By the way... I paid $6 for six of the barrels, $9 for one, $10 for one, $13.50 for one, and $118 for the 20ga. Of course by the time I finish getting them to me - via Hunterbug - I'll end up paying, including delivery, about $50 each. I'm OK with that.
Paul