I've had 2 of them & neither would shoot to my expectations . In retrospect maybe I should of tried more things .
Used to be a 2700 shooter named Marty " Babe " Magnan . He only shot S&W revolvers . He made his own grips , cast his own bullets etc . He used to shoot 2600+ regularly . He wore out a Ransom rest testing loads in his 25 . He claimed that anything softer than Linotype would not work . He used an H&G 78 mold , Linotype & would seat bullets deep enough to crimp on the front driving band . Liked Rem 45AR brass , Fed primers. Originally used Dupont 5066 ( no longer made ) , then Win 452AA ( long gone ) , then Scott 453 ( another no longer made ) . He said he got good results with 4.6 W231 . Last I knew he'd changed to 4.6 Green Dot for 50yds & 4.3 Green Dot for 25yds . He would adjust charge weight with each powder lot until he got 825 to 850 fps . Never would tell what he sized to . H&G 78 mold usually drops at 215gr with # 2 alloy & around 204gr with straight Linotype . He also modified a mold to drop @ 175gr ( Linotype ) for 25yd timed / rapid fire as recovery time was less with lighter slugs . Pretty sure this was done by reducing thickness of bullets base . Any way a little history & it sure worked for him . Might be worth a try .