Semi-inlet stocks require the installer to spot the stock in. Meaning use a transfer agent (I use a mix of lipstick and vasolene) applied to the metal work and transfered to the stock when the metal is lowered into the wood. To keep the metal straight and level headless screws called guide screws are used, screwed into the action and lowered thru the action screw holes in the stock. The metal will leave a trace of the marking agent which is then cut or filed away. Small chisels, files, and scrapers make short work of the joib. The metal is then again lowered into the stock and the process repeated. Once the metal is sufficiently deep into the stock it is usually glass bedded to provide the ultimate wood to metal fit. The lower metal on the 788 requires only that the distance from the action to the bottom metal be close.. After the metal is in the stock the stock can be shaped with rasps, files, chisels and sanding. Finish is then applied to complete the project unless checkering is also desired.. Please note there is a fairly considerable amount of time invested in this process..though the 788 is an easy one to inlett.