I have fallen head over heels in love with mine, as I am sure many here grow tired of hearing. But hey, if you're asking...
Last year was my first to go afield with one, for Bighorn Sheep, Elk and Whitetail. The curly horns evaded me but the other two weren't so lucky!
145gr Grand Slam, 200yards, broadside, stopped under hide on the offside.
Same load, but at 40 yards, broadside, the usual complete pass through.
As others have mentioned, the 275 Rigby really shines once you start handloading for it. I haven't bought a box of loaded ammo in I'd say 9 years and back then I knew nothing of this wonderful workhorse so I wouldn't be able to recommend where to get ammo.
Alot of the old rifles have a pile of freebore which makes it hard to seat to the lands when reloading too.
I have the 154gr Hornady Interbonds going just over 2800. With a B.C. of .54 she will shoot flat farther than I care to try.
Don't overlook the other Xx57 cartridges either (8x57,9x57,9.3x57)
There are good times to be had with these ones too. I hope to shed more light on that when I get back in two weeks.
If in doubt, just buy one, I can almost guarantee you will love it. If you don't, I know where there are alot of gunnutz who would gladly take it off your hands.
