Just out of curiosity, if you were going to choose a revolver in .45 caliber, why wouldn't you opt for the natural "revolver" choice and go with .45 Long Colt? It's a tried and true round that's stood the test of time and isn't a compromise to put into a revolver, i.e., it's not an "automatic" round that's been adapted by the use of half-moon clips. While I don't have one myself -- yet -- Taurus makes a 2" 5-shot .45LC revolver that you can see Link Removed that looks interesting for a nightstand gun or carry item.
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NOTE: On closer scrutiny I see that this item has been discontinued. However, like the Colt Magnum Carry .357, I'm sure you can still find them around on the various gun auctions.
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Well, after scouring the Internet since I wrote this, about an hour ago, I find NOTHING significant on a .45LC snubbie revolver! Interesting. I would have bet serious money that at least once upon a time Smith came out with a .45LC snub nose that, while not very well received, I guess, was at least produced. Maybe the Charter Arms Bulldog, still available in blue and stainless in .44 Spl., would be the alternative. Apologies.