Only got mine the other day, just read it upon your recommendation.
I don't know where he is coming from. Does he want a Sir Samuel Baker exploding bullet???????

If you have a look at the 1900 H&H catalogue there is a lot of information on their Paradox guns including a picture of a 16 bore paradox cartridge 2 1/2" paper case with hollow point bullet on page 78
Page 28 shows three bullets taken from dead animals with very little deformity.
page 29 shows a picture of a 16 bore Paradox gun
The prices ranged from 65 guineas best grade through to 40 guineas lesser grades these prices were the same for 12,16 and 20 bore.

good to hear from you Robert.