I use shockly gold 3ff with 110 gr in a 300 gr cast bullet in a 430 sabot I also shoot the same bullet with 3 ff t 7 and use 100 gr not much difference in group a 100 yds. Just my experience with my gun. Though I have had simular results in 3 different 50 cal. Omega Huntsman and sidekick, present gun is encore