A 1910 in .380 is allegedly the pistol used by Gavrillo Princep to assassinate Archduke Franz Ferdinand and his wife Sophie in Sarajevo, thereby starting WWI. I have only the older Browning-FN Model 1900, and it is one of my favorites. It was made only in .32 ACP.

I don't know, but I'd suspect that you will also need at least a .380 magazine and a stronger recoil spring. I am also not sure if any modifications to the breech face and extractor are needed to accommodate the larger diameter of the .380.