My Ruger SR9 was furnished with a loader for double stack mags. I can't load a magazine without it.

I bought one for single stack mags on Amazon. Name on it is "Racine.com". It works for 9mm single stack and also works on the 1911 .45acp. Don't remember what I paid for it.

Thanks y’all for the explanation and pics/links to show exactly what you’re talking about.
So many fun guns. I’m
So thankful for Uberti and their importers for giving us a chance to shoot these great firearms.

   Oh Balderdash.  I als forgot, one needs to not the difference in the Barrel Lug.  The 1860 Richards/Mason has the "new" manufacture barrel with the "S" Lug while the 1860 type II Transitional reflects the use of the original 1860 Army pattern Percussion Barrel.

And then Along Came Jones!!

I've never owned a '60 R-M and have no pics of one.  But like Coffinmaker said, pics are on Cimarron's website.  Yes, the Richards (Type II, that is) has part of the ejector rod exposed.  It is the under barrel lug area that is different, as the Type II originally had a rammer attached, and the R-M was a new dedicated barrel for cartridges so didn't need that big hunk of metal underneath the barrel.  The R-M barrel is also similarly shaped to the Opentop barrel.

'60 R-M: https://www.cimarron-firearms.com/products/revolvers/conversions/1860-conversions/1860-conversions-1860-richards-mason-army.html

'60 Richards (Transition / Type II): https://www.cimarron-firearms.com/products/revolvers/conversions/1860-conversions/1860-conversions-1860-richards-transition-model-type-ii.html

Note that the ejector rod is short in those pictures, barely longer than the ejector housing.  Those are old pictures.  Some originals were like that, including the one owned by Mike Harvey that was sent to Italy to copy.  But it makes it harder to eject empties, so they quickly changed to the full length rod.

   OK, OK, OK, O   

Bob:

I'M without doubt the most vocal advocate of annealing on the forum.  I am THE jump up and down Champion.  Bar None.  Except for Handguns (different thread).

Back to the Spencer.  I don't own nor shoot a Spencer.  Butt.  Itza Rifle.  If you have the slightest amount of Blow-By, you need to Anneal your cases so they seal the chamber and the Rifle will shoot cleaner.  If you're shooting Fire-Form'd cases, you need to anneal, the cases will last lotz longer.  If you're splitting the case mouth, you need to anneal.

Now Here Be The Deal BOB!!  YOU answered your own questions in your own post about your results with 45-70 cases and 38-55 cases.  Stopped your Blow-By cold.  Bet you don't split cases enough you don't notice you don't split cases. 

Your Method of Annealing works just fine.  I also use a cordless drill motor with the right size socket on the end and prop. torch.  Works a treat.  Not only that, but you can use the cordless drill motor for all sorts of other things, like drilling, screw driving, polishing, etc.  Just keep what yer already doing.

Remembering of course, People ARE Hazardous to Yer Health!!