If the price is remotely right, and the gun factory original, go for it! The 10MM is the BEST self defense, Service Pistol round available. Do put a fresh set of springs in any used gun you acquire, particularly a 10MM!
For carry, use FACTORY high velocity ammo (135-150 grain) for maximum terminal effect. (exception - Winchester Silvertips are excellent.) In the woods, CorBon Penetrator (200gr FMJ) for deeper penetration on critters. With the wide range of factory loads and the ease of reloading, the 10MM is a performer! CC