I’m inletting a stock for a 416 Rem mag on a Winchester model 70 action. I need to get the action about 1/16th to an 1/8th of an inch deeper in the stock but this last little bit is really slow going. Does anyone have any tips for finishing up the last little bit of inletting?

No tips; just the technique; inletting black on the metal. Sharp chisels; remove wood; repeats 1000 times. That's all there is to it.
Use headless screws to get it straight down. Inlet the bottom first on a rifle with one piece bottoms. You are going to want cross bolts on a 416.

Tex you need to rough in the where the flats of the receiver bottom out, at close to full depth. On a Mauser I know that depth is 16.5 mm from the top line. I do this on the mill first up. You’ll have to figure out what a Mod 70 is.
Make a simple gauge that sits on the top rails and protrudes down the correct depth, a T shaped thingy.
Now hog out those flat areas as close as you dare.
The barrel channel needs kind of the same treatment.
The sides of the inletting will not need much work, it’s the bottom that is slowing you down.
Good luck.

I'm assuming he is using a semi inletted stock. He only has 1/16th inch to go.

Like you said it is still in and out 1000 times though.

Thanks. Yes, this is a semi inlet from a blank I had turned to my pattern stock. I can see how much further I need to go. It’s just hard to tell what’s getting in the way at this point.

Yeah right I probably went a bit off tap with my other post, sounds like you won't have much wood to remove.
Just go slow and steady.
Take a long time and do a good job.

The last little bit is the most important part to be patient with. You cant put it back on.

If it is hard to tell what is getting in the way, you aren't using enough inletting black. I use Jarrow's; none of that home made crap from lipstick and vaseline.
It will be obvious what to remove; do not guess. You will get gaps and amateur work. Use sharp chisels and scrapers.

Razor sharp chisels are a tremendous help.

If you don't have one, an articulated desk lamp with a natural light bright bulb is a big help - with the in and out a million times, be careful of eye fatigue - when you are tired or grumpy, take a break

JuST a small tip on inletting the round corners of the front ring and tight places that can be difficult: Use a drop of water off a match stick on the corner then put the barreld action together nice and snug. let it dry thoroughly, may need to repeat a couple of times, it will dry shiney and perfect crush fit..use during the finishing stages.

quote:

Originally posted by Atkinson:
JuST a small tip on inletting the round corners of the front ring and tight places that can be difficult: Use a drop of water off a match stick on the corner then put the barreld action together nice and snug. let it dry thoroughly, may need to repeat a couple of times, it will dry shiney and perfect crush fit..use during the finishing stages.

I've done the same using mineral spirits.

I have also used mineral spirits, your post was a wake up call, It rung me bell!!