will the new lehigh fluted type work with casting?

[savage308]

just wondering if the new style of fluted type self defence projectiles would work cast with a hard alloy and water quenched. they aren't designed to expand.

[Loudenboomer]

The design is most effective at speeds higher than usually obtainable with cast handgun. Magnum type cartridges could be the exception.

[Loudenboomer]

It would be a real bugger making a mold too!

[savage308]

I push my water quenched, pc'ed .308 boolits 2200 fps and have no leading. I think a lee type die would work.
I wish someone would make one for me.

[country gent]

THe problem I see is with the mould itself the 3 flutes wont allow an "even" spacing in the blocks making a mechanical lock when the bullet cools. Swaging them would be possible though. A swaging die to form the flutes would be interesting as a hard cast bullet could be used for the core. The machining for the flutes would be tricky. If you wanted to powder coat then a mould similar to the old Ideal perfection could be made with the flutes in the nose punch.

[Loudenboomer]

Savage you did say Lehigh. The light weight polymer style is what I was thinking. Ruger ARX type.

[WheelgunConvert]

Has anyone ever made a 3 sided single cavity mould? I imagine it looking like an old style wheel puller

[crankycalico]

To be honest, the cost of the mold would all be focused on the aggravation caused by design and machining it.

Would most likely need to be a 4 piece design. the 3 pieces forming the bullet held inside a ring. overall would look like a witworth mold.

[WheelgunConvert]

I thought that was the 3 sided APX POLYMER. I get it now.

The 4 sided symmetry could probably be accomplished with a pin type. No one will touch it, save China, because of the patent

[Johnch]

Has anyone ever made a 3 sided single cavity mould? I imagine it looking like an old style wheel puller

Made ... No
But I have 2 - 3 sided molds I used to use to make for snagging
They used a 10/0 treble hook and 4 oz of lead

Easy to use , but slow if you are spoiled by 6 gang molds LOL

John

[savage308]

I was thinking 4 petals so 2 of them would be in the middle where the mold block splits
and the other 2 in the middle of each side of the mold .

[Loudenboomer]

I think country gent had the easiest solution with a custom nose pin. Is this for a handgun? or Rifle?

[country gent]

Those flutes will be bosses in the mould. ( moulds are mirror image) So with 1 on each parting line Half each block you have an effective mechanical lock and wont be able to open the mould up once filled and cooled.