I have discovered that 25gr of current productions of RL is a case capacity load for both my 43-210B and Hornady 240gr SWC-HP.
23gr produced an avg 1,337 fps out of my 24" Marlin
25gr produces and avg of 1,425 fps
Ironically the seating depth of the Hornady 240gr SWC-HP is about the same as the 43-210B so 25gr is also a case capacity load.
25gr and 240gr bullet = 1,425 fps......just over max psi
25gr and 210gr bullet = 1,424 fps......just under max psi
I said I was done with RL-7 testing but I think I will try both loads now at 100 yards at some point in the future.