jagermeister:

The .470 uses a 500 grain .474" bullet.

There are two .475 No. 2 Nitro Expresses, and both are common. The .475 No. 2 Eley used a .483" 480 grain bullet, usually with 85 grains of Cordite. The .475 No. 2 Jeffery used a .489" 500 grain bullet, usually with 80 grains Cordite. Both use the same case. Both were, and still are, quite popular. In pre-war guns they are not as common as .470s, but they're certainly not uncommon either.
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