Your exactly right, but. You need to go to a 45caliber to get the full benefit. Like sabotloader said, 777 is better with lighter bullets in normal loads. But heavy loads of BH209 and 200grn bullets BH209 shines. My Chronagraph is still going up with 140grns of BH209 and a 200grn bullet. You will not see that with 777.

135grns of BH209 and 200grn bullet equals 2491 avg.

140grns of BH209 and 200grn bullet equals 2523 avg

Knight Rifles is the only ML company that allows 150grn loads by volume.