Actually my Doctors say I need a lot of help, effing quacks anyway.

I am looking for load recommendations that would come close to regulating in a wide variety of new, strong, not worn out double rifles in .470 Nitro Express.I see H-4831 and H-4350 mentioned a lot in Graeme's book about loading and shooting the English double rifle.

Bullets would be Woodleighs, North Fork, and possibly Hornady. My mind is not made up regarding Barnes or A-Frames, but my mind is open on the topic.

I am thinking also of marketing a "try box" containing five groups , each group has a 1 grain in powder charge to cover a five grain spread.

I believe I will mill most of the way down the midlines of the Hornady and Woodleigh solid bullets to check the depth of the copper coating over the steel jacket.

All load suggestions will be fired in a pressure test barrel before they are marketed.

Those 470 NE barrels (unturned) from Krieger make quite the paper weight, I will say that.

Thank you all,

John

If you want help choosing what bullets and loads to use in your double, I would start at the link below. Concerning pressure tests, I think you will have a hard time conducting tests as extensive and comprehensive as have been done by Michael and Sam here on this forum.

The Hornady, both DGX and DGS, produced the second and third highest barrel strains of all bullets tested. The Woodleigh Solid produced the highest barrel strains tested. Don't let the fact that most manufacturers use Hornady ammo to regulate their rifles give you false confidence in those bullets. They use Hornady because manufacturers don't warrant their rifles against handloads and therefore use the least expensive and most plentiful factory ammo for regulation work. NOT, that they have done any specific testing concerning pressure or barrel strains.

I don't see anywhere in your post where you mentioned CEBs. IMO, they are your best bet, especially for a solid, hands down. You may or may not be onboard with the Non-Con concept. If not, I would suggest the Northfork for an expanding bullet.

Do a search on the DGX bullet and see what you get concerning terminal performance. I'm thinking you will not be very pleased with that bullet.

Here is the link to the "Double Rifle Bullet of the Future Thread". I think you'll find it very helpful:

http://forums.accuratereloadin...0101804/m/1201069141

Thanks Todd, I will follow that link.

Initially I will have to calibrate strain gauges against regular REMCHESTERHORNNNORM PRODUCTS. If I ever inherit some serious change it will be time for piezo electric measurements. I did a lot of that in my University days, as all good little chemists did.

It isn't so much fun when you have to pay for your toys.

Thanks again for the leads and input. I appreciate that very much.

I ran a side cutting/end cutting mill bit along all the cup and core geschossen in der mid lines. A splash of copper plating does not a safe bullet make.

Now is serious R&D time. Proof of concept and all.

Hotay, Back on topic,

I would appreciate it if anyone with a .470 would PM me some basic load ideas. I will, of course, do all load work-ups. Not having access to a double at the moment, it would help to get an idea of the basic range of H-4350 and H-4831 loads. No liability, no attribution.

Thanks again.
L/D

lawndart,
106 grains of IMR 4831 with any 500 grain bullet available will work and they regulate in most guns. H4831 would be up to maybe 4 grains more. Every can of powder is different so start a little below recommended loads. H4350 is similar to IMR 4350, I'd start at about 100 grains with a 500 grain bullet. As Todd suggested take a look at the thread he sent you the link to. I will go post on the Double rifle bullet of the future thread to bring it back to top for you. I think you will find it interesting.

Sam

lawndart,

Below is a link with some data I worked up a few years back...hopefully this is helpful.

http://forums.accuratereloadin...=159103224#159103224

If you search the Double Rifle Forum you should find some additional data

Than you guys!

When I start loading for cartridges that must regulate, I will be getting powder in 2 x 8# caddies; both from the same lot.

Those jugs of powder will not be available for any other uses.

I have a fair number of boxer primed cartridge cases, but hundreds of Berdan cases used x 1, or used x 0. Time to hunt down the appropriate RWS Berdan Primers.

JJ is regulating my Chapuis for the Woodleigh bullet.
His suggested load is 79 grains of 3031 which I will be using.
Frank