That gun looks okay to me for five hundred bucks...and it does have a pinned barrel.

This just my opinion, but I think way too much emphasis or concern is placed on the whole thing about oversize throats on this gun, and the gun's potential for "shooting wildly". I don't know what that means...shooting wildly. Most people aren't going to be match shooting with it. I see the 4-inch 25-5 mostly as a self-defense gun, or a carry gun around the farm. If it'll keep all six in a 6-inch group at 15 or 20 yards, that'd be good enough for me. The gun isn't going to spray bullets like a shotgun.

So $500 for the gun...sure, why not? Congratulations on what, to me, is a good buy.