I , having been invited to leave another muzzle loading forum joined this one in the hope of exchanging ideas with others who shot Modern Muzzle loaders and maybe who had considered using nitro.
I my absence Certus you seem to have covered the subject pretty comprehensively to the point of not only posting excellent pictures of two of your revolvers but covering subjects such as Black Powder Licences and even the name of a firm that will convert your Black Powder ROA. as well as Westlake (but not Anvil Conversions).
Purely out of interest therefor can you remember when your ROA conversion was done.
I've been shooting M.L. since the early 60s and already had a ROA and a Rem .44 (Italian made but badged 'Lyman USA'). when the handgun ban kicked in.
I was shown a ROA nitro conversion by a gunsmith in Kent whom I had visited to collect some .457 hollow base conical bullets. Since my club banned BP for the reasons you have described I made a complete new cylinder and backplate for both the ROA and the Remington, sent the completed guns to the proof house and have been shooting them ever since.
My ROA is an almost exact copy of yours, I wonder if yours was the one I was shown and from memory made a copy of. Just curious.
By the by, I have also bought one of Anvil's really well made Uberti Remington .44s and have to say the workmanship is superb, makes my old 'Lyman' (circa early 60s) look a bit poor as far as the gun goes.
Incidentally I have now gone from .457 lead balls dipped in dilute alox and allowed to dry hard, propelled by Herco, to Blue Dot and am seeing better results.
Since my RAO is not based on a traditional ML Revolver it sports a red dot sight which helps my 1938 vintage eyes.
Nice to be in touch with someone with similar interests and so much knowledge.
Steamjohn