Alan:

The load data I've seen given for the No.2 has always been 53-55 grains square flake nitrocellulose with 225 grain bullet. The only reference to Cordite I can recall are the marks on the 2 Rigby's mentioned (a "D" boxlock and a best sidelock). I've seen it listed at both 2550 and 2600 fps.

The .350 Rimless was ususally listed with 62 grains of an unspecified nitro cellulose at 2600 or 2625 fps. Fleming does list a load of 56 Cordite for it. Kynoch says standard ballistics were for a 24" barrel. I've never seen it listed for the No. 2, but the the standards for the double cartridges were almost always developed in 28" barrels, sometimes longer.
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