if the OP can find any 7.62X54R (should be common in Asia) then pull down for the powder he MAY be OK
Agree.
I think that is the best route. While I have never loaded for the AK47, the powder used are medium burn rate.
http://www.reloadammo.com/762rload.htm You would have to use powders from the same lot of AK47 ammo, and you would have to start with light charges and be very careful about watching for pierced primers, leaking primers, and in a bolt rifle, sticky extraction.
but then again comeing up with the right o.d. slug is a problem,
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The first thing I would check is internal case neck expansion on the 30-06 cases. If the AK47 bullets drop right into the case neck of a fired 30-06, then these over sized bullets can be used. If the AK47 bullets are tight, or a push fit, the use of overdiameter bullets will create a bore obstruction.
It is entirely possible to shoot slightly larger bullets down a smaller bore as long as the case neck is not pinched. Cast bullet shooters do it all the time, and I have shot 7.62 X 54R surplus down Finnish barrels that were 308.
Incidentally my Ruger M77 has an unusually large case neck diameter.
The absolute worst account that I read of someone shooting overdiameter bullets was of a gunplumer who rechambered a 6.5 Arisaka to 30-06. This was recorded in a 1950's American Rifleman magazine. The owner reground the pilot of the reamer, so it would fit into the 6.5 bore, than cut a 30-06 chamber. The owner shot a deer, but took it to a real gunsmith because the rifle kicked too much.
The gunsmith then sent the rifle to the NRA who test fired it. The 30-06 bullets were all swaged down to 6.5 diameter in the barrel. The most remarkable thing about this was the action held up. The Arisaka provided an unusual amount of case support and the Arisaka action is the strongest action ever installed on a military bolt rifle. A lesser action with less case support, weaker brass, and pinched bullets, would probably have blown the action and the owner to kingdom come.
Everything I am describing is of increased risk compared to the best practices of using known powders and known bullets. Because I have access to good components I will not try ersatz reloading practices.