lngrng, rattler, et al.-
I used a Swede 8x58R to take a pig in this years 24hr TN hog event.
See my post of 03/14/14 in the hog hunt thread for photos and load details, including brass.
LINK to hog postI'll attempt to answer more detailed questions, although the subject is mostly off-topic for a black powder forum.
If you do pick up a roller in 8x58R, avoid the smokeless loading data in
Cartridges of the World.
--Bob