We are applying black power practices (with an external cap, liable to be knocked) to nitro conversions (with a primer surrounded by the metal cylinder walls).
Loading a nitro conversion cylinder is not unlike loading ammunition - the primer goes in first and is protected from damage by the cylinder walls.
I believe that the shotgun primers are a loose fit in the revolver conversions so they may be designed to go in last but on the Patriot pistol, which uses small pistol primers and a special loading press, you most definitely load the primer first.
The Patriot is a bit unique as guns go... The original question was how to load a "Cylinder Modified to use nitro" the Patriot is not a modified gun and also has no cylinder. So an explanation of how to load a Patriot will not answer the question that has been asked, and will just confuse the OP even more.
The vagaries and meanderings of this thread - now weeks old and still unresolved - probably speaks volumes for the lack of popularity of this strange anomaly of the shooting world.
So far we have not yet even come to a concensus on how to load it!
By the time that we have, and the OP has fired it, Man will be coming back from the stars.
4 pistol calibre lever guns , only need a .44-40 now
not anymore I don`t yehaa
interesting variations on sequence...
I wonder how much of this variation is down to the differences in the construction of the conversion
My ROA conversion only has a single firing pin and is loaded
bullets pressed in
primers inserted (pointing down range)
retire for coffee and pie
my only worry with this set up is a hangfire ....not had one but wouldnt be pleasant to deal with (mind fingers etc)
Gun control means using both hands.