A buddy of mine traded for a Custom 6mm built by Mel Doyle of Plumber ID. The action is a Czech VZ24 Mauser action. Has a 22" very heavy bull barrel 1 in 8" twist. I'm not sure who the barrel manufacturer is. The gun is in very good condition and doesn't look like its had more than 50 rounds through it since the work was done. Action, barrel and bottom metal are all blued and in great shape. In a pretty cheap looking synthetic stock. Gun supposedly drives tacks, although he hasn't had a chance to shoot it. Bore and throat look great. Any ideas of what this rifle is worth? I told him $400 to $500. I'm not super familiar with Mauser actions, so I could use some second opinions.