Howdy
I know you said new, but don't forget Smith and Wesson invented the 44 Special back in 1908, and made an awful lot of guns chambered for it, long before the 44 Mag existed.
They are not falling off of trees, them that has old S&W 44s tend to hold onto them. But they are out there.
Here is the gun that started it all in 1908, the 44 Handejector, 1st Model, also known as the New Century, but most commonly known as the Triple Lock. It took me a long time to find a Triple Lock I could afford, but after looking for years I now have two of them. This one left the factory in 1915.
Then there was the 44 Handejector 2nd Model. Basically the same as the Triple Lock but without the fancy third latch in the cylinder crane. This one shipped in 1921.
I came across this funky 44 Hand Ejector 3rd Model a bunch of years ago. Refinished, not too well either, stippled on the top strap, and the original grips are badly worn. It is wearing some replica grips now. This one was made in 1929, and was carried by an officer during WWII. It didn't cost too much, and I couldn't pass it up. I even got the officer's well worn holster with it. It would make a neat carry gun.
Craig, I looked for a Model 24 for years. Foolishly passed up a beautiful one a bunch of years ago and have not seen one since. They are rare as hen's teeth around here. Instead I came across this terrific 44 Handejector 4th Model a couple of years ago and grabbed it. I forget when it was made, it is a five screw, and I'm guessing it left the factory in the early 1950s, but I'm not sure right now. So I'm no longer looking for a Model 24, which probably means I will finally come across one.
Here is a really nice 624 I ran across a few years ago, made in 1985. Not too expensive either. Pretty new gun for me. I took the oversized target stocks off it and put a pair of Magnas on it. This one would make a pretty nice carry gun too. Much lighter than a 44 Mag. Yeah, I have a Model 29, but it is just too big and heavy, I much prefer the 44 Special guns.
So, in case you feel like looking, there are some nice old 44s out there, but you have to hunt for a while.