.470 cast

[Gareth flanged]

Hi,

I'm having trouble flaring the case neck in a .470 NE so I can get a cast bullet seated.

Does anyone make an expanding die that works at this size?

G

 

[Huvius]

I often use a .338 Lapua case to give my bigger BPE cases a little flare. Just do it by hand.
You don't need much to get your cast bullet started

 

[Russ16]

Maybe a large hire pistol die would work like a 475 linebaugh or 480 ruger. I isn’t knowing those come with expander dies like the 44 mag and 45 colt dies do.

 

[JFE]

Both Lee and Lyman make neck expanding dies for seating cast bullets but I doubt that they make one specifically for the 470. NOE moulds make neck sizer expander buttons for Lee dies.

Alternatively, you can try to find a machinist to make a suitable sizer expander button to fit these dies.