Not made for 357 - Weaver One Piece Pistol Mount Base

First, the one piece mount is a two piece. The base is gloss black but the yoke that goes around barrel is matte black. The ID of the yoke is .801 and the OD of the barrel is .775. That's no good in my book. Called Weaver and the tech's answer was I DON'T KNOW, send it back and we will send the right color. I decided not to go through that I'll live with the color and shim the .026 gap. A shim .013x1/2x1-3/4 will wrap the entire inside of yoke and slide over barrel. I found a place to send for Teflon sheet stock .015x12x12 for $9.00 plus shipping, probably another $9.00. A lite sanding will take it down to .013. I think that will fix the problem. That being said. I don't think it would cost Weaver much, to supply a plastic shim like Burris uses in there signature Z rings. Probably 10-25 cents. The yoke was most likely made to fit 44,s+45,s. How many years has Weaver sold this problem to 357 owner's? In summary, this is no fault of the retailer's, It's Weaver's If you don't want to D+T the gun,buy one and fix it ,it's the only one out there. But be FORWARNED