I read somewhere a full year, but no-one in the 21st century has that much patience. You'd have to put it in a sealed pipe to keep the kerosene from evaporating out.
Stumpy...I have done this in as little as a week or so in the summer when I could put the PVC pipe with the rods out in the sun.
It will certainly straighten the rod if the PVC pipe is laid flat. Rods treated with coal oil will "bow" or slump much faster that a regular rod should you forget and stand it on end leaned against something.
And, if the ends are not taped real good they won't stay on worth a nickle especially if they are pinned.
The effort we go through to save a buck!
I personally don't think that smell ever goes away....unless I have only used hi-test coal oil. That distinctive smell combined with Black Powder smoke will make a maggot hold his nose.
Some folks wrap the rods with electrical tape in a spiraling wrap for a pretty neat looking rod. I tried it and ended up with a gooey mess that had to be burned off :crackup:
I used a propane torch once to "stripe" a rod, and it turned out pretty good. Then I soaked it in coal oil and wasted another 8 bucks (I saved the tips). Guess I was saving money. :huh:
A good hickory rod is still hard to beat, in functionality, and looks. We pay $2.40 for a pine dowel rod, spend another $5.50 on rod tips, an hours labor in pinning the tips and sanding the rod, put it in .25 worth of coal oil and hope for the best. If we tried to buy a hickory dowel, it would cost as much as a complete rod from the store, perhaps we deserve what we get, after all...it is muzzleloaders way.
Russ