Tongues on Tips of ML Bullets

[MaverickNH]

I’m casting pure lead (99.5% from RotoMetals) in a Lee 20-4 pot for Lee REAL 250gn 50cal ML bullets. I run my pot on about setting 5 for 750-775F and heat my mold to 400F on a hotplate.

I’m getting a lot of tip surface deformities - some just a few wrinkles and others that are deeper cracks. I worry about the latter and toss them. I also see “tongues” on tips as seen in the picture. I’d appreciate any advice on avoiding these tip issues - thanks!

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[ShooterAZ]

You need more heat, with pure lead you need to be around 800* +.

[MaverickNH]

You need more heat, with pure lead you need to be around 800* +.

Thanks - I’ll crank it up next time.

[ericandelaine1975]

For pure lead i cast at 820. The bullets have a whitish hazy look but no deformaties.

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[jcren]

Yep, those folds or inclusions are due to lead freezing as it is poured instead of staying liquid until the mold is filled. Hotter mold and or lead.