Over the years S&W has produced M29 M629, and M629 revolvers with 2.5" bbls. (Blued steel, stainless steel, scandium frame & titanium cylinder)
I'd check used before new, as I suspect these were fired little.
Today, S&W produces2 .44mag snubbies:
M629 (perf center jobbie)
M329 Night Guard (scandium frame & steel cylinder)
I like my M629 with "middling" .44mag loads of 240gr LSWC at 1000fps. This is ~250fps greater than .44spl.
If this sort of load would suit you, you might be interested in the S&W N-frame snubbies in .45ACP (M25, M625, M325). Most reports i have read say they can handle much hotter loads than the usual 230gr @ 850fps of issue hardball. .45Super is easily done, which gets you in "middling" .44mag territory and some folks bore the cylander a bit so it will chamber .460 Rowland, which is in .44mag territory.
Good luck.