Yes Sir, RB Rodda 303 British top lever rebounding hammer rifle with 28" barrels, rifle was regulated for 215grs max and 38gr Riflite powder, regulation was an easy dream, 40gr RL-15 under 215gr Woodleigh Weldcores for the right barrel. regulates beautifully at 2162 fps.
Remove expander plug from your size die, FL size new WW or RP 303 British brass, debur inside case mouth, drop in same 40gr charge of RL-15, seat CEB 210gr Copper Safari solid top driving band flush with case mouth, give it a small pinch with Lee FCD.
You now have a solid load for your left barrel small double with some of the straightest and deepest penetrating solids known to all mankind.
I know you didn't ask for all this, just put it out there in case some other 303 British users wanted a solid load for their little doubles, or bolt/single shot rifles, I can tell you any animal turns to run from first hit 215 Woodleigh Weldcore is going to be popped on the butt and receive a tracheotomy via the CEB BBW #13 210gr copper flat nosed solid.