I went through this dilemma and bought a new .380 long action bolt, <$150 from Numrich. Works with all my old LA actions and I don't have to tear the bolt apart. Just screw on the barrel, insert spare .380 bolt, headspace and shoot.

SSS sells all the parts to convert.... but they are almost as much as the new bolt.

Now, who has a 6TCU Savage small shank???????

Bill