http://auctions.holtsauctioneers.com/asp...919&image=8
"MANNLICHER .275 RIGBY 'MODEL 1903' BOLT-MAGAZINE SPORTING RIFLE, serial no. 18589, re-barrelled to .275 by Harrison and Hussey from .256, 22 1/2in. nitro barrel, ramp-mounted bead fore-sight, 2 x folding V-notch rear-sight, fitted with a Schmidt & Bender 6x42 telescopic sight serial no. 157637, manual bolt safety, butter knife bolt, detachable floorplate, 14 1/4in. well-figured pistolgrip stock, leather sling"

looks like an original barrel in 9x56 MS http://auctions.holtsauctioneers.com/asp...6&saletype=