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375/408 Banded Solids Test

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Unread 03-03-2009, 12:00 AM
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Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,841
Re: 375/408 Banded Solids Test

Sounds very interesting and very impressive performance for sure.

What do they cost?

Unfortunately, here in Montana, they would not be legal for big game hunting as they are not an expanding bullet.
Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

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Unread 03-03-2009, 12:53 PM
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Join Date: Jan 2008
Posts: 436
Re: 375/408 Banded Solids Test

Fiftydriver, I think that is a question for Noel Carlson, I have a pretty good idea but I think Noel will come on and share that after these things have flown a little more and are proven. As you know one can pay a very heavy price for prematurely offering a product for sale. As stated in an earlier post I did experience instability at higher velocities, Noel is sending me the tweaked ones next week and I will post the results. Noel wants these tests to be transparent. He is confident the kinks will be worked out PDQ.
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Unread 03-03-2009, 01:08 PM
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Join Date: Feb 2004
Location: Pennsyltucky
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Re: 375/408 Banded Solids Test

i have a friend that has a 338/378 with an 8 twist 40" barrel. i know he was going to try some of the Lehigh's. he'd probably test some. i assume you mean the 338 is 7 calibers long?
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Unread 03-03-2009, 05:02 PM
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Re: 375/408 Banded Solids Test

Kirby, Dave,

These Von Karman projectiles are seven calibers in length, and are designed to function optimally from an exponential gain-twist barrel with an exit rate of ~20 calibers. In the case of Terry's .375, this would translate to a 1: 7.5" twist, which is slightly tighter than the 1: 8" constant-twist Lawton employed with a degree of success recently.

The .338 would require a still tighter rate of 1: 6.75".

A recent fall in copper prices has helped my pricing structure. The projectiles will be more than competitive with comparable solids, but I want to make the necessary refinements prior to formal marketing.

2,800fps-plus barrel exit perturbations/blast instability needs to be resolved in the, otherwise, dynamically stable flight properties of this design. There is also need to ensure that the engraving bands are stout enough to be interchangable with a constant-twist rifling geometry.

It should be noted that this is only the first component of a complete ELR barrel/cartridge system.


Last edited by noel carlson; 03-03-2009 at 05:15 PM.
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Unread 03-03-2009, 06:36 PM
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Join Date: Mar 2006
Posts: 894
Re: 375/408 Banded Solids Test

Good to see you over here now. This is the site to fine tune your hunting projectiles without a doubt. Many great hunters and very knowledgable shooters. They will appreciate your work.
I'm looking forward to getting my 300wsm up and running to shoot your 30cals to optimize the efficiency of an already efficient cartridge.
The oxygen free copper expandables should be awesome for hunting as well.
It is going to be an interesting project.
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Unread 03-03-2009, 07:01 PM
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Join Date: Mar 2009
Posts: 214
Re: 375/408 Banded Solids Test

Hello Rocco,

... And thanks for the welcome.

I expect imput from participants at this site will aid greatly in development of dedicated VLD hunting projectiles.

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Unread 05-29-2009, 08:07 AM
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Join Date: Mar 2004
Location: Las Vegas, NV
Posts: 610
Re: 375/408 Banded Solids Test

Do we have any new information on these tests? I'm still waiting for the gaint-twist barrel for my 338LM Improved, so I've not started testing yet.....

I did receive my GS Customs 295 grain banded solids, which are only slightly shorter in overall length then the 318ZA that Noel sent me to use as a mock up bullet for getting my reamer cut (that is still in the works too, but is expected back very soon).

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