Good idea to clean the old lead in a tumbler before melting.
For some (as yet) unknown reason, my Werder´s reverted to inaccuracy again. A very similar Werder cav. carbine has just gone on the GermaneGun site for over 4000€ (although mine´s a LOT nicer)! So it´s now playing with its demise. Although I suspect it´s because I still haven´t got to the bottom of the re-loading process yet. The problem seems to be that most BP cases need a filler of some kind, whereas the 11.5 x 35R cases are too small to take the regulation 2.5 grammes of BP. And even with compressed powder, there´s no space left for the grease and paper wads. Don´t think it can be the barrel, as it´s got a mirror bore with strong rifling. And the barrel is firmly attached to the forestock fore and aft. So I´ll try again with a greatly reduced load (this was the most accurate setup).