Hornady DG factory load powder

[dougfinn]

Does anyone know what type of powder Hornady uses in their .450/400 DG factory loads, or is that a trade secret? Looking to develope some loads for my VC double in that caliber, and seeing as how it was regulated at the factory with Hornady ammo, I thought that using the same powder would be a good place to start.

 

[Foxi]

You'll probably never know.
Manufacturers cultivate their secrets
Experience shows that powder is not available.
Foxi

 

[Longwalker]

I took one Hornady 450-400 3" 400 gr. SN ( not bonded) bullet factory load apart, and it was charged with 80.3 gr. of a powder that "looked" like H1000 or H4831. That's about all I can tell you.

 

[Hogpatrol]

No clue on the DG ammo but a friend called to see what powder was in their Superformance Creedmoor ammo and was told it was a proprietary blend.

 

[1dirthawker]

dougfinn,

i have a 450-400 as well. i chrono-graphed my hornady loads and got 2100 fps out of my 25.5" barrel.

i hand loaded a duplicate speed load with imr 4831.

my load is 76 gr. of imr 4831 with a 400 gr. north forks softs/solids. there are other excellent bullets out there, that was just my choice. of course start at a lower weight of powder and work your way up until your bullets converge, then check the velocity if you can.

good luck on your project.

 

[AZDAVE]

I have worked up 400 gr swift A-frames and nortfork cps with AA4350 for my VC double.

 

[tarbe]

Does anyone know what type of powder Hornady uses in their .450/400 DG factory loads, or is that a trade secret? Looking to develope some loads for my VC double in that caliber, and seeing as how it was regulated at the factory with Hornady ammo, I thought that using the same powder would be a good place to start.

I duplicate the Hornady factory load velocity with 78 grains of IMR 4831 in Hornady case and a Fed 215 primer...Hornady DGX of course!

My practice load is now 81gr of the same powder, as I find the factory loads a little "light".

Edit: Just recalled that you are shooting a double...so I am not recommending the 81gr load for your rifle...I am shooting a Ruger No. 1 and have a little more flexibility!

I think you will fine the 78gr load very close to factory velocity. It is within 25 fps in my rifle.

 

[Lbarr265]

most factory loads use proprietary blends, often mixes of powders we do have, we just don't know the mixture. I would just pick a powder you like and try to replicate the muzzle velocity.