? about casting pure lead roundballs

[bchannell]

I've read all I can find about casting pure lead and hardness of alloys, and can't find any good info about how to make lead easier to cast fully filled out balls.
I'm thinking from extrapolation that adding 1% or less of tin to lead would not affect the hardness to any appreciable degree, and that it would make mold fill out much easier.
Anyone have thoughts on this? Should I just try for more heat and stick with pure lead? My rifle shoots pure lead round balls great, so I don't want to affect hardness if possible.

[Muddy Creek Sam]

Turn up the heat.

Sam :D

[Jayhem]

I'm using 1% tin with my pure lead to make muzzleloader conical boolits and they cast awesome and don't have to be that hot to fill out perfect. They shoot better because the boolits all come out uniform now and hardness doesn't seem affected.

[fryboy]

for me pure lead makes the purtiest castings ( no tin ) but it isnt from my bottom pour pot .... i use a ladle and preheat my mold , even the big .690 RB comes out great !!