[lugerholsterrepair]

Some of the repro holsters are a little small, and may require wetting and "boneing" to fit a pistol.
Just be sure to put the pistol in a suitable and sturdy plastic bag when inserting into the wet holster if you have to "stretch" it a bit.

For what it's worth I recommend you stay away from WATER when attempting anything like this. I have found that water can more often than not negatively affect leather with unpredictable results due to rapid or slow shrinkage.

I use medical alcohol. It's cheap. A couple bucks a quart. Reuseable. Just pour it back in the bottle. Dries fairly rapidly but has little of the detrimental effects of water. Shouldn't disturb existing dye.

Worth thinking about.