.453 210gr Hex for the 45ACP

[oldpara]

Before I invest I'd like to ask this well established body of knowlege if anyone can see any unusual feeding problems associated with this design.
As I look at it on screen I can see that maybe a .05 radius around the nose wouldn't hurt, but aside from that, anything ?
I don't see any real practical advantage to this design, it's just different.

http://i1232.photobucket.com/albums/ff361/skysol173/stuff/453hex.jpg

[Highway41]

Interesting... VERY interesting. Does this exist or is it still theoretical?

[45 2.1]

Does this exist or is it still theoretical?

Theoretical.......... Imagine just how a mold could be cut.

[oldpara]

As of now it is still a model in this caliber for a 45 auto.
I have this design/molds in three other calibers, 30, 38, and 25 for revolver and rifle use.
I'm concerned about it's possible feeding problems in a semi auto.
It certainly wouldn't be cut on a lathe, I would cut it on a cnc mill like the others but alas I don't have access to the equipment anymore so will have to farm it out to a custom shop or find a job shop with the ability and willingness to do the job.
Money is the issue so I don't want a *** I can't use unless I buy a 45 colt or something.

[longbow]

What is the purpose of the nose design?

[oldpara]

I modeled them more or less around a design a gentleman came up with years ago.
His assumptions for this design sounded reasonable, the look was interesting, but not alot of testing was done.
For my purposes it is just a design, something to play with, I don't hunt anymore, and haven't had to shoot anyone in over 43yrs so paper and duxseal are my only prey.
Most bullet designs are pretty mundane, a cylinder with a point or a flat or a round or a hollow.
There's just so many variations of the variation of the cylinder.......

[oldpara]

I'm sorry, I wanted to include the article about the "DEVEL"
http://www.thegunzone.com/people/charlie_kelsey2.html

[longbow]

Thanks for that! An interesting read and explanation of the design.

With only four flutes the mould could be cut from a standard set of blocks with one set of ribs straddling the mould faces but to go to the 5 or 6 shown in the article you would have to use a separate nose form. It could be done using CNC and a typical hollow point mould style with large diameter nose form with the nose profile machined into that.

I made a 6 finned shotgun slug mould in the same manner, though there the 6 fins were on the back end.

Now having rambled on here, you say you have this design in other calibers. How are those moulds made?

Curious minds want to know!

Longbow

[Blammer]

the ledge between the prongs of the plus may get caught on a feed ramp or other such obstacle, the only thing I can see.

[MtGun44]

EDM could make the mold.

Bill

[oldpara]

Thanks for that! An interesting read and explanation of the design.

With only four flutes the mould could be cut from a standard set of blocks with one set of ribs straddling the mould faces but to go to the 5 or 6 shown in the article you would have to use a separate nose form. It could be done using CNC and a typical hollow point mould style with large diameter nose form with the nose profile machined into that.

I made a 6 finned shotgun slug mould in the same manner, though there the 6 fins were on the back end.

Now having rambled on here, you say you have this design in other calibers. How are those moulds made?

Curious minds want to know!

Longbow

I made the molds just as you stated.
Modeled them, programmed them and cut them on a cnc mill years ago.
The one in 25cal and the 30 cal are GC designs, the 38cal is plain base.
I was thinking of six "fins" originally and cutting using the 4axis fixture but worried about it releasing from the mold so just stuck with 4 "fins".

[oldpara]

the ledge between the prongs of the plus may get caught on a feed ramp or other such obstacle, the only thing I can see.

Maybe I could put a good radius on that edge or angle it away and get away with it.
Right now just wanting/needing input from the knowledge base here.
Thanks

[hicard]

Might be a good bullet for bowling pin matches?

[lavenatti]

A slight taper to the walls of the fins(getting larger towards the middle of the bullet).
It'll drop out of the mold easier.

[oldpara]

A slight taper to the walls of the fins(getting larger towards the middle of the bullet).
It'll drop out of the mold easier.

I think I'm going to let it rest for awhile, it's starting to look like a bunt cake pan..............

http://i1232.photobucket.com/albums/ff361/skysol173/stuff/220grhex454ver3.jpg

Heres the ones in the other calibers, much sharper "fins", but they're for revlover and rifle.

38cal
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/358.jpg

312 dia
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/312.jpg

258 dia
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/258.jpg

[harley45]

That's to bad I'd love to have 1 in 40 and 45

[root]

I'd like one for the 44 mag.

[rlb]

I think I'm going to let it rest for awhile, it's starting to look like a bunt cake pan..............

http://i1232.photobucket.com/albums/ff361/skysol173/stuff/220grhex454ver3.jpg

Heres the ones in the other calibers, much sharper "fins", but they're for revlover and rifle.

38cal
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/358.jpg

312 dia
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/312.jpg

258 dia
http://i1232.photobucket.com/albums/ff361/skysol173/stuff/258.jpg

I would think that the model in the center of your picture would fee fine.

[oldpara]

I would think that the model in the center of your picture would fee fine.

I was of the same opinion on shape.
I've got some waxes on the machine so by Monday I should be able to seat a couple of them in the cases and just try cycleing them thru the weapon.
Thanks for the reply. I'm a revolver person and rather new to the 45 ACP, I've noticed it's picky about shape length etc.

[Michael J. Spangler]

Tagged for updates.

[oldpara]

Well, I got the waxes off the machine this morning and they we a mess.
Over the weekend the machine apparantly had a brain fa*t and blessed me with eight build errors, Grrrrrr.
A 46 hour build, totaled. It's dissapointing but it's REALLY dissapointing when it's for a customer.
I have some real work to do on the machine this week so I'm not going to mess with these until the weekend.
I'll re-check the model integrity and try them again.
Back to the drawing board.