Yes your right for the difference in pressure can be ajusted easy. Yes their is not that much difference in recol but in some competition their is a no break rule and for spoting my impact I do think a 6mm caliber would be easier. But I can be wrong.You can easily make up for the slight pressure difference in the 260 with more powder when seating the bullet further out for sure + not much recoil difference between the 24 and 26cal. I mostly use FMJ for all my shooting needs! Not everyone's cup of tea. The only cal I don't (and can't get) have any FMJs for are the 27cal (270win). Norma makes them, but can't get them in the US anywhere? Those Rem clones (115mc) are hard too find.
270win.. one of my best hunting round.
I like speer to have a low cost pratice/hunting round