Dand, I don't have anything on the jacketed heavies. I'd go to a manufacturer and keep the fingers crossed!
The factory Gold Dots weren't much to look at through my Marlin, though they hit 1744fps. The reload speed was only 37fps higher, but accuracy was right there. Another option would have been 265gr CPBC with AA9 at 1504fps, I was just too curious about the Gold Dots. Winchester Supremes were okay, they gave 1.5" at 50 yards with 3 shots in the Marlin. They are on the low end of foot pounds compared to other factory 210gr rounds, but they're in it for the weight obviously. The FA M97 liked them, though.
The 2400 load and 250 CPBC was very good, it ran in a final test for me with 800X at 1169fps and Lil'Gun at 1237fps and was just more consistently accurate.
For Lil'Gun I simply tried 17.5gr behind the CP 250's and 265's. I have no way of knowing what the pressures are in any of my guns, only that they showed no signs, but that doesn't mean they'd be good/safe in your guns. In the Marlin, they kick pretty good! The gun recoils differently (it's my first centerfire lever action) by rearing up pretty high. Not so much straight-back recoil, yet it doesn't smack the cheek. Anyhow, you see Lil'Gun top at 20.5 with the Speer 220 JSP on the Hodgdon site. I run 21gr with the 210's and so far that charge with a 210gr Sierra has given me the greatest energy reading out of the Marlin. The next one down is the 265gr CP with Lil'Gun. In my 657 it gave 949 foot lbs, that's right up there with the heaviest rounds I've fired in that gun (it's a 6.5" Classic Hunter and now they sell them with 7.5" barrels) just 7 ft lbs ahead of the Sierra/Lil'Gun load.
I've spent a good amount of time, obviously, working these up, and it's sometimes a lot to take in. I think I'm going to narrow it all down to Speer bullets, 200HP, 210GD and 220SP, and the CP 250's. Haven't even tried any of this newer stuff in my Blackhawk, I'll just take the best of what I've found and try it there. SOMETHING is bound to work!
Kirk