Teddy Roosevelt .405 Winchester Cartridges

[crs]

Here is the picture I promised of one of two boxes of my Christmas "stocking stuffer":


Here is the link to the bullet description on the Winchester web site - note claim of "delayed controlled expansion".

http://www.winchester.com/products/cata ... NoZXN0ZXI=
I do not recognize the bullet used, nor can I find it as a loading component on the Winchester site. Any ideas?
Me neither, so I took pictures alongside a Win Supreme Partition Gold .45-70 with Nosler Partition Protected Point bullet.
First from the side:

Then head on:


Note how the .405 lead tip is slightly exposed and the Nosler lead, though visible, is protected by the wrap around copper jacket.
The .405 jacket also is weakened by 6 cuts in the copper jacket to promote controlled expansion and the Nosler is not.
Does anyone recognize the .405 bullet, or is it a Winchester bullet that is just not available to handloaders and for which no performance data has been published?

[Griff]

Maybe this'un? .411" Dia. 300 Grn. FP Soft Point f/.405 Win..

[Don McDowell]

Looks an awful lot like the 300gr hornady fp, stuffed into a nickled case.

I wish they would of dug out their own bullet tooling ,and used their old roundnose instead of those hornady's

[TedH]

Those are almost too purdy to shoot. They do look the Hornady bullets that I have too.

[crs]

Guys, you appear to be correct. The Win is even crimped the same as the Hornady loaded round. It is a good bullet, but I was hoping for something a bit more exotic - oh well, at least I know what I am shooting and how it will perform on game.
I plan to see how they perform on a Nilgai in April on the Leverguns Safari.