Could a WW2 or later USN holster used for a 4" Model 10 be used for the 66 2 1/2 " revolver?

Why not...it will just be longer than you need...the frame is the same size so it should fit okay...if it was a more detailed rig, the larger front sight and ejector rod housing would be a problem...but it doesn't look like it will be from that pic...

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Thirty characters. Exactly...

Please forgive me for hijacking this post, but just why the heck is it that people don't think anything about spending $500.00 to $1,000.00 for a really nice gun, then go and cheap out on a holster? A decent gun deserves an equally decent holster. I believe I read somewhere years ago (before the internet, when we actually read gun magazines) that the rule of thumb was to figure on spending 10% to 20% of the price of the gun on a holster. And with the synthetics available today that figure can be reduced substantially without giving up quality. (Although I still prefer leather). End of rant. -Ed.

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Shoot the CPU, not the monitor

What do you think is "cheap" about that holster? They were of very good quality, both materials and workmanship, and if still in good condition very adequate. When that holster was made it very likely did cost 20% of the value of the revolver it was intended for. At that time 20% would have been about $7, even less if the Gov't price for the Aircrew revolvers, something like $28, is considered. And, if you want to look at at modern versions from El Paso Saddlery or Pacific Canvas Leather Co. you will see they still command 10-25% of the value of the guns they are made for.

P0838, nice holster, and in better than average condition for it's age. Very adequate for what you need.

They are actually quite functional. I carry my deerhunting backup gun (1911 in .38 Super) in the imitation GI version, and it is so comfortable you don't realize gun or leather is there. There may be some concealment issues for CCW because of the cross strap, but for other uses I can highly recommend them, and also for CCW in Winter.

Could there be a fitting problem with the 66 which has rear adjustble sight?

Pardon me. I will assume that there is supposed to be a picture of a nice holster where the red "X" is on my ancient computer. The original poster had asked about a world war II (1941-1945) or "later" which would mean, to both me and the dictionary, "before" (or pre-world war II) military issue holster, which is minimum 64 years old. Unless I personally knew how the leather was maintained and preserved, I would be thinking that it could be dried out and cracked, and that the strap could break at any time. Modern reproductions are totally new holsters. But the O.P. did not ask about a modern reproduction. Yes, I agree that the military holsters were quality products when originally made, and that they may be adequate IF (and that's the key word) in good condition. But they were made a long time ago. Remember, it's made from animal skin, and it will age. My skin was once soft and baby smooth, and now it's old, rough, cracked, and wrinkled.

What I thought I had read was someone asking if an old, used, second hand holster could be used for a gun that was not even available at the time the holster in question was made. I'm sure we've all seen it. Someone buys a brand new gun, then digs through the used/ trade-in/$10.00 holster box to see if they can find something to "almost maybe" fit. I once bought a nice 6" 686 that came in a Hunter 7 1/2" SAA holster. It "almost" fit. Perhaps I'm wrong, perhaps I'm too picky, but I believe a holster should fit a gun like a glove, not like a loose fitting mitten. -Ed.

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Shoot the CPU, not the monitor

It is a vertical holster so it should fit OK. A horizontal may cause enough movement to be a problem.

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Front sight and squeeze