8208 is your huckleberry in that regard. It’ll get good speeds, I’m betting it’ll be accurate as well. Next up would be H4895 and Varget. Those three would be my first picks if temp stability was on my brain.
Great topic. I started shooting further with the Leupold 6x42 with LR Dots which is the same spacing interval as a B&C. Worked fine out to 500 and 600 yards. I started using the 6x MQ SWFA and 3x9, both being able to dial or hold on the reticle.
The B&C or dotz worked fine but I hated the...
Springfield Armory is one that seems real good, as is the Seekins and Proof. I’d probably look more at what stock appealed to me than the particular maker since they all make nice rifles.
I did it once shooting the 270 and 7 WSM side by side one day years ago. Couldn’t figure out why the 7 didn’t shoot for beans. Well when I got to the bench I realized I sent 3 270 WSMs down the 7 tube :LOL:
Maybe take a look at H4895 data. It can be downloaded to about whatever speed you want with little to no danger. No experience downloading that big Ruger case though.