It crossed my mind that keeping the details off the board might be more dangerous than posting them. (... especially following the video request
A general disclaimer;
Do not do this if it does not make you nervous... confined explosives should scare you. If they do not, then Darwinistic principles can come into play, along with the attendant removal of your genetic contribution from the human genotype.
First- Using a 38 Special shell as a measuring device, pour one (1) measure of triple-x black powder down the bore while standing the rifle vertically. An exact weight is not critical, as this is not a precision operation.
Second- Prepare a 30" steel rod, which approximates the bore caliber, by deburring. Run it down the bore with a cotton patch leading. Gently tamp the charge.
Third- Go to a secluded area. Place the rifle, with bolt removed and rod inserted against charge, horizontally between two 100 lb sand bags (can be purchased from any building supply store). Point both the muzzle, and breach, in directions which will not endanger life, or property.
Fourth- A candle will work, but if you are impatient, use a proped, and supported propane tourch to heat the barrel exterior at the location of the powder charge. The removal process will still take about five minutes, so do not return to the rifle to make adjustments once the procedure has been initiated. There will be two, poorly aimed, potentially lethal, projectiles in flight when the powder lights-off. Place yourself behind cover which is adequate to protect you from either should they come your way.
Since your bullet is not far into the rifling, this is more than enough exposive power to remove it... In fact, it is more than needed to extract a 5" lead lap.