I've been working on loads w/ 4451 & RL-17 but am still not set on a permanent load to run. The accuracy is there w/ both .406 in 5 shot group @ 100 yards w/ 4451& .455in. 5 shot group w/ RL-17@100yrds... Ave of 5 -5 shot grps...my velocity ES is 10-12 fps w/ 4451& 12-14 w/ RL-17... The 4451...