Very nice pistol; solid ... and in pristine condition.
Easy to figure out the bore; introduce your index finger into the barrel ... and take a guess
![Wink](images/smilies/wink.gif)
.
Sorry Jim, couldn't hold it
![Embarrassment](images/smilies/redface.gif)
.
Looking at the barrel and by what we see out there of Dougall, must be a large caliber, like a 54 bore (.44)
![Cool](images/smilies/cool.gif)
.