Nowhere! A case for an advanced handloader. You have to get a set of reloading dies, a lathe, .45-90 brass. Turn the bases to rebated rimless, fl size. Trim to 60 mm. Get or make some 11.2 mm = .440" bullets. .45" bullets may be swaged down. the original 1934 DWM load was a 21.5 g = 332 gr steel jacketed bullet ahead of 4.00 g = 62 gr Rottweil #5 smokeless powder for 680 m/s = 2230 fps (72 cm = 28" test barrel)