Having cleaned the inards of your bolt and checked to see if the firing pin is numbered to your rifle, reassemble the bolt.
Put it back into the rifle, cock it and set the safety to the staight up positon.
Take the bolt back out.
Now turn the safefty to the left (fire) position. Pull back a little on the cocking peice to do this, twist and let the whole shroud and cocking peice slide down the the rear cammed surface of the bolt body into the fired position.
The whole object of the above procedure is to get the bolt to the fired positon so that the firing pin is now protruding from the bolt face, as if the rifle had just been fired.
The firing pin should now be protruding from the bolt face by a distance between .055 and .065 inches.
If the protrusion is much less than .055 inch, ignition will start to become eratic, and as the condition worsens, finally cease altogether.
Now you must get the bolt back into the cocked postion to put it back in the rifle. To do this, you need a little block of very hard wood with sharp 90 degree edges on it. You use this little peice of wood to push back on the sear face of the cocking peice and just force it back until you can turn the bolt shrould back onto the flat rear surface of the bolt. You can then pu the bolt back into the rifle. If the wood is to soft, like pine, it will just crush. If you use metal, you will ruin the face of your sear and create a terrible trigger pull on your rifle.
If you think about this, a specified tolerance of .055 to .065 inch is not a whole lot. Masuer rifle parts were mass produced, but the final fitting in all the German and Swede made rifles was always done by hand fitting to very close tolerances. That's why I would always place a very high premium on a rifle that is in very good or better condition and all matching, all original.
A lot of guys mix and match parts on these rifles with not a tought in their heads about what they might be doing to rifles that were originally carefully fitted together by hand to very tight tolerances. Well, the Germans and Swedes were actually trying to be as standardized as they could be under the circumstances that turn of the last century technology allowed, but they were crafty enough to know that real interchangqablity to fine tolerance is not really possible and took the extra care on these well made rifles to make sure they really worked to near perfection. Most of the time mixing of parts will in fact work O.K., but not always.
If your firing pin matches the rifle, I doubt that this is the problem. If it does not match the rifle and this truely is the problem, you can blame some careless bubba that did not have the sense or the skill to switch parts and still keep things within tolerance. There a quite a few of these self schooled "smiths" running around today.