If by "..an A.Uberti 44 mag" you mean "an A.Uberti .44 percussion" you should be OK feeding it factory cowboy loads with lead bullets, be they smokeless or blackpowder loads.
If reloading your own ammo stay with soft lead bullets sized .451" or .452" propelled at CAS-legal velocities.
If your conversion-cylinder has 6 chambers the cylinder walls will be noticeably thin.
If it has 5 chambers there will be a little more steel to keep the pressure contained...
Anyways I believe most conversion-cylinder manufacturers state that firing anything but factory cowboy loads in their products will void any warranties, so stay safe.

Hey Rick, where ya been?  I guess that pistola would be .44 Percussion, not .44 Mag 

Do you mean it says black powder only on the barrel?  Because all the percussion guns say that.  Or does the conversion cylinder (or its instructions) say that?  I don't recall if those instructions said "BP Equivalent" loads or if they just say "BP Only" which would mostly be to cover their ass because someone would shoot hot smokeless in it.

I don't have one but have seen a lot of people shoot light smokeless loads through their conversions.  I don't think I'm qualified to say if that's a good idea or not.  I shoot smokeless through a Kirst conversion cylinder but that is a .38 and there's a lot more metal around the chambers.

p.s. Is the dye and soldering iron how you did the grips?  Nice color.

I don't know.  I'm not a gunsmith.  But I knew a guy who bulged the chamber on his old 44-40 '92 and was able to have the chamber relined.

Quote from: GunClick Rick on September 06, 2024, 03:30:30 PMi think it is abuse to the second Amendment, Florida is a constitutional carry state now,but i don't want the bad guys knowing where my gun is.this is just stupid Get bite then he robs you of your guns,you gonna reel it in or shoot,if your gonna shoot don't fish! TUCO!

HUH!  "I don't want the bad guys knowing where my gun is. this is just stupid Get bite then he robs you of your guns"

Is that a Typo? Please explain

El Darado hat.

Quote from: Abilene on March 01, 2024, 02:05:33 PMIf the edge is a little rough, you could always cover it with some pop-pom trim. 

tie a string around the crown leave enough of the string where you want to cut it tie the string to a pencil or pen and go in a circle around the brim where you want to cut,leave the string lose around the crown so you can go in a circle.I reshape old hats i just use what i have around the house or kitchen.

i think it is abuse to the second Amendment, Florida is a constitutional carry state now,but i don't want the bad guys knowing where my gun is.this is just stupid Get bite then he robs you of your guns,you gonna reel it in or shoot,if your gonna shoot don't fish! TUCO!

I HAVE AN A. Uberti 44 mag with conversion cylinder it says black powder only can i shoot 45 cal. cowboy loads in it?Has a two piece conversion cylinder

I woke up at 1:30A.M. and for some reason this popped into my itty, bitty head.  Actually head is big with much empty space inside.  Every posting I read regarding a re-chamber to a similar but different caliber requires removing the barrel, cutting at the chamber end and re-cut the new chamber dimension thus shortening the barrel length and bringing the rear sight dovetail closer to the receiver.
So what would be the feasibility of casting the existing chamber, machine a copy of the casting, bore the new caliber dimension into the copy and use the product that cements barrel liners in place to secure the new "chamber" in place.  You could also possibly pin the new chamber copy in place at 6:00 or 5:00 and 7:00. If the "new" caliber cartridge is shorter, there might be a small amount of free-bore but we have that with most our our pistol cylinders anyway.  Free-bore would be within the new machined chamber.  The exterior dimension and appearance would not be altered.
Thoughts from more knowledgeable cowpokes appreciated.
Chas B