I buy powder from Aaron(Robin's Trading Co.) as well.
Last time he had RL-15 listed it was $50/lb., I dont need it bad enough to pay that.

It could be 4 years, idk.
Last time it was roughly 2 years after Sandy Hook before supply and demand began to equalize and even longer before prices got back to pre- mass hysteria levels.
This is what I've been hearing lately from ammo/component manufacturers again this go round. Expect availability to be in dribs and drabs until things get back to normal....whatever that may be.