actually, the original chamberings did not include the 270 win. they were 30 us(30-40),38-72,40-72,30-03,30-06,303 brit,35 win,405 win,7.62 russian. i have 3 originals-a '06 take down with a lyman 21 receiver sight, a reg '06, and the best of the lot--a35win made in 1903 with a lyman 21. the 35 win was factory loaded with 250 jacketed at about 2150 fps--right there with the mod 71 and 348 win but in a round nose.