We all look forward to seeing the finished stock JGW....
JWG - not trying to hijack your thread, but I thought everyone might enjoy this progression of pictures as it basically ties to what you are tying to explain -> [I have shown this on many of my refinish posts] but since we have some interest this might help everyone understand the progression. this is a really nice Birch TRW stock.
My disclaimer again - there are hundreds of ways to refinish stocks and this is not the only way and I do not know it all, but this pictorial may help you follow this specific process.
After refinishing so many stocks over the years I can generally look at the stock after stripping it with Soy Gel and getting the first few coats of teak oil on the stock what type of plan I have for that specific stock in terms of staining / color. Generally speaking the staining we are discussing relates to birch stocks. However, even with a plan you might get into the refinish and the stock will dictate the direction you ultimately take. After finishing hundreds of stocks you begin to see certain attributes and you move along and make adjustments on the fly.
As far as walnut stocks I generally do not want to stain walnut unless the stock has a lot of Sap Wood and has light and dark areas. When I get a stock like that I often use a mix of tobacco brown and mahogany [I call it my "Walnut Helper"] and will stain the stock so it has a nice uniform color.
Like I have mentioned so many times before I have had a lot of "Failures" in the earlier years, but those failures taught important lessons that I retained on future refinishes.
Here is the starting point:
Next - using Soy Gel and to strip 60 years of crud off of the stock
Next - after removing the Soy Gel with a warm water bath and spraying down with de-greaser you have a Birch Stock stripped to the bare wood.....
Next - comes the "Tactical Sanding Phase" as I call it [Dry Sanding - generally use 150, 220 & finish with 320]- where I removed some of the "sins of the past" and ensure the stock has the sharp lines that an M14 stock should have. You may get a stock that has some damage or that has been sanded poorly in the past. This process corrects those problems. I would say this is one of the hardest steps to do well and can only be mastered with a lot of practice. You tend to know each stock manufacturer and the classic lines of the M14 stock. When a stock has been rounded off in certain areas due to poor sanding it is just ugly...
Next - after filling the grain with the stocks own sawdust, I begin working up the teak oil wet sanding progression. I generally begin by adding a thin coat of teak oil over the entire stock then work up the progression from 320 to 1000. You apply the teak oil, gently wet sand and then take your 2x2 cotton folded up lint free rag and wipe the stock down. You need to let the stock dry overnight, then repeat to the next grit. This is what the stock looks like after wet sanding with teak oil [Still NO Stain at this point]. To follow the entire process you need about 2 weeks and you need patience. Many are not willing to take the required amount of time to use this method as you are talking about 9 days to work up the wet sanding progression.
Next after reaching and finishing the 1000 grit wet sanding it is time to lay down the stain. I only use Stew Mac Alcohol Based Stain - this is a mixture of tobacco brown and vintage amber. A few pics after adding the stain to the stock then wet sanding at 1200. After adding the stain you need a VERY soft sanding hand to wet sand. You apply a thin coat of teak oil over the entire stock then apply very little pressure when you wet sand or you will loose color. You can see the stock has taken on some color. When the stock dries it will have a bit of a dull look [but don't worry].
Lastly - after working up to 2000 and doing the final wet sanding you allow the stock to dry two days then take it to the buffer and that is when you will see the reward of all your had work. I buff the stock and then hand wax [3-5 coats] with Renaissance Wax then do one more final buffing. This is the final Product / Reward!