I have googled a lot but was unable to find out a bullet puller that would work with the biggest sporting cartridges ( weatherby,nitro express and even the winchester short magnums).Is there on the market a “magnum” bullet puller?
I’ve made a couple of the size your looking for, using 3/4" (19mm) or 1" (25mm) pipe and fittings, and a 30" (750mm) by 3/8" (10mm) steel handle. The ones I made would swallow a 50BMG round easly, but not quite do a 20mm Orelikon.
According to one of the users, with the big stuff you often don’t need to use the handle.
If you make one, you will need o make your own shell holder(s), flat washers cut into a “U” to fit the extractor groove., Be be sure to provide a vent hole in the side, just in case a cartridge should happen to detonate.