http://randywakeman.com/MOAand300Yar...avage_10ML.htm

You'll still need to do some of your own individual test and trial. Yes, N120 can be a pain to get; the shipment that just came in about three weeks ago is already sold out. If you want some when available, you might want to get it on order directly with the importer: email Jeannie @ jbolda@kaltron.com.

Reloder 7 is about the best "N120 sub" I've found-- very close.