Best Alloy for higher velocity

[joecool911]

I have lyman #2 alloy right now. It seems to have a narrow range of temperature for good mold fill out. I shoot most of my bullets in the 2,000 to 2,500 fps velocity range. Any recommendations on what I should add to my alloy? Or should I look at a different formulation all together?

[lwknight]

The higher tin content makes it more persnickety about temperature.
You can cut the tin by 1/2 but will lose some ductility.