Over weight Cast Bullet powder charges?

[mbogo3]

http://www.lasc.us/CastBulletNotes.htm

 

[fwm]

Not unusual for a mold to make bullets several grains heavier or lighter than nominal.

If your load data is at max for 250gr, you'd need to back off some for a heavier bullet. But most cast bullet data is already quite mild, so using the same powder charge would be ok in that case.

This unless your loading very hit which is unusual for cast loads then you’re overthinking it. Do you load testing for an accurate load and enjoy the relatively cheap shooting.