Ну в таблице вот около 120 й вихты
Из Вихтовского мануала
N133: This speed is very close to IMR 4198 in quickness.
N110: This is a very fast burning propellant that can be used in applications which previously used Hercules 2400, Hodgdon H110, or Winchester 296.
N 120: This speed needs higher pressure than N110 in order to optimize burning. Burning rate falls near the various 4227s.
N130: Burning rate is between IMR4227 and the discontinued Winchester 680.