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maral
.224 member


Reged: 17/05/11
Posts: 33
Loc: Norway
Re: Chapuis Brousse 470 NE [Re: maral]
      #353523 - 18/05/21 05:01 AM

Today, the Chapuis is finally mine! The paperwork is done, and I got rid of some hard earned cash.

Since the french girl liked the Norma 500gr FMJ rounds, I will try to duplicate them. The Norma cartridges is loaded with 114gr of Norma MRP-2 powder. As the MRP-2 is not being sold anymore, I will try a load of 106gr MRP. Quickload predicts similar barrel time and pressure curve as the factory cartridges, giving the same velocity of 650-655ms. The first cartridges has been made, and I really can't wait to burn som powder at the range this Saturday!




Edited by maral (19/05/21 03:22 AM)


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93x64mm
.416 member


Reged: 07/12/11
Posts: 3975
Loc: Nth QLD Australia
Re: Chapuis Brousse 470 NE [Re: maral]
      #353527 - 18/05/21 06:16 AM

Well done mate, this one certainly is an heirloom piece to be handed down - nice control when firing too!
Will be great to see your results when you do your reloading tests, please don't forget to add details of your loads etc as this will be great data for the .470 to be saved for future shooters.
Can't wait to see how it all goes.


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maral
.224 member


Reged: 17/05/11
Posts: 33
Loc: Norway
Re: Chapuis Brousse 470 NE [Re: 93x64mm]
      #353688 - 23/05/21 12:05 AM

Satisfaction!
Was at the range today, testing my handloads for the 470NE. I had played around in Quickload to try to find a load for 500gr Woodleigh FMJ and SP. With the FMJ-bullets, I found that 106gr Norma MRP gave a pressure curve and barrel time in the same range as my Norma ammo, loaded with 114gr MRP-2.

Changing to the Weldcore SP-bullets, I had to increase the load to 108gr MRP to get similar results. Both loads should give a velocity of 650m/s. At least in theory ;-)

After testing point of aim for both loads, and shooting over the chronograph, it looked very promising..

After giving the rifle a hour to cool down, while I had coffee with my fellow gunnuts, it was time for the final excam.. 2 softs and 2 solids, shot at 50m, using the 50m-sight.




I don't play golf, but this should be close to a hole in one...

Loads used:

Woodleigh 500gr FMJ, 106gr Norma MRP, Norma cases, Federal 215 primers. COL: 97.5mm Muzzle velocity 652m/s.

Woodleigh 500gr Weldcore SN, 108gr Norma MRP, Norma Cases, Federal 215 primers. COL 97.5mm Muzzle velocity 654m/s.


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transvaal
.300 member


Reged: 19/01/13
Posts: 130
Loc: South Carolina
Re: Chapuis Brousse 470 NE [Re: maral]
      #353689 - 23/05/21 01:33 AM

Maral;

You have done excellent work in developing a load for your DR. Few people, even professionals can do as well as you have done.

I hope you are enjoying all the sunshine there.

Kindest Regards;
Stephen Howell


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DarylS
.700 member


Reged: 10/08/05
Posts: 26486
Loc: Beautiful British Columbia, Ca...
Re: Chapuis Brousse 470 NE [Re: transvaal]
      #353692 - 23/05/21 03:10 AM

Excellent indeed. Bit of windage correction is all.
Probably doesn't need it, but I would.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V


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93x64mm
.416 member


Reged: 07/12/11
Posts: 3975
Loc: Nth QLD Australia
Re: Chapuis Brousse 470 NE [Re: DarylS]
      #353702 - 23/05/21 09:04 PM

Wow that is amazing regulation work & load data there maral.
As far as 'golf' goes - you've made 4 holes in one!
Well done indeed!


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maral
.224 member


Reged: 17/05/11
Posts: 33
Loc: Norway
Re: Chapuis Brousse 470 NE [Re: 93x64mm]
      #353709 - 24/05/21 05:06 AM

Ooops..I had a Zeiss V4 1-4x24 with illuminated reticle at the shelf, and after looking through my "bits and pieces-box" I found som parts to convert the 1" scope rings to 30mm. The Leupold that was on the rifle has gone back to the past owner, and the Zeiss has been mounted. Hopefully this will not affect the regulating of the rifle, but it do look like it belongs on the Chapuis. If everything works as planned, I will sight the scope at 100m, and let the 470 have a swing at som red deer and elg this fall.



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DarylS
.700 member


Reged: 10/08/05
Posts: 26486
Loc: Beautiful British Columbia, Ca...
Re: Chapuis Brousse 470 NE [Re: maral]
      #353710 - 24/05/21 08:35 AM

Ahhh = Stags and Moose!

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V


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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 39188
Loc: Barossa Valley, South Australi...
Re: Chapuis Brousse 470 NE [Re: maral]
      #353715 - 24/05/21 02:27 PM



Assuming that is left barrel to the left and right barrel to the right, I wish my doubles had such clear regulation. Well done.

Hopefu;;y the heavier scope doesn't affect the regulation. As a guess, if it does, it might make the two barrels shoot slightly more apart. Speeding up the loads slightly might compensate. Or something else happen. Ha ha.

Once tested with the new scope and if it is regulating OK, I'd love to see a "regulation" target shot with NO scope in place. To see how in your rifle it might be different, or not.

The 1x lower variable setting should be excellent on a big nore rifle. Especially in the brush. And great for largest dangerous game.

Up to 4x excellent for longers, more precise shots, a nice red stag at a 120 metres maybe, that tiny roe buck about to get hit with a 500 gr Woodleigh!!! The moose running by the stand should crumple nicely with such a large projectile, indeed might zip straight through with little expansion.

What reticle does your new scope have?

Thanks for posting.

Quote:

Ooops..I had a Zeiss V4 1-4x24 with illuminated reticle at the shelf, and after looking through my "bits and pieces-box" I found som parts to convert the 1" scope rings to 30mm. The Leupold that was on the rifle has gone back to the past owner, and the Zeiss has been mounted. Hopefully this will not affect the regulating of the rifle, but it do look like it belongs on the Chapuis. If everything works as planned, I will sight the scope at 100m, and let the 470 have a swing at som red deer and elg this fall.






--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 39188
Loc: Barossa Valley, South Australi...
Re: Chapuis Brousse 470 NE [Re: NitroX]
      #353716 - 24/05/21 02:35 PM



BTW I am going to borrow this image, as provided for in our terms and conditions on NE (unless the member has asked for this not to be done), to display this wonderful image on the NE page and group on facebook. It is a lovely image, a nice rifle, a spectacular background.

An unusual choice for an elg, but African dangerous game rifles can and should be used sometimes at home, whether as an excellent choice for boar and running boar, medium game such as deer, moose or elg. And here in Oz on excellent practice on our ferals, pigs, goats, donkleys and more.

A lovely image worth using.

I hope this is OK with the member.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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maral
.224 member


Reged: 17/05/11
Posts: 33
Loc: Norway
Re: Chapuis Brousse 470 NE [Re: NitroX]
      #353717 - 24/05/21 02:41 PM

No problem ;-)

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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 39188
Loc: Barossa Valley, South Australi...
Re: Chapuis Brousse 470 NE [Re: maral]
      #353718 - 24/05/21 02:48 PM

Quote:

The price is quite acceptable, I think.. In the $4000 range, included scope, Rcbs dies, 50 Norma cases and 150 Woodleigh WC bullets.




BTW just looking back to your bridge image the link which has dropped off, that price, WOW! I would buy three at that price! Very well done. Usually second hand Chapuis here go for at least $7000. $8000 or a lot more. Very well done. And a "cheap" way to get into double rifle owning and shooting, with an extremely useful and valued chambering.

Your posts have perhaps made me consider one day a Chapuis in .375 as my future .375 double rifle, I have desired for many years. If scoped it performs like yours, it could become my main hunting rifle for anything medium game where a longer range shot may not be required.

One member on NE had unfortunate results with his Chapuis, same time I was in France. I forget the circumstances. But generally most people I know with them are happy. One or two have had negatives, but sometimes self caused, such as shooting unbanded mono metal solids through their rifles. But generally I think it is a cheaper DR brand which can be purchased with a fair amount of confidence, that it will do what it is supposed to do. I have been put off by the beavertail forend, but perhaps it can grow on me. I certainly will keep my eye out for a suitable pre-owned .375 H&H Mag or preferably a .375 "Mag" Flanged.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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Nojden
.275 member


Reged: 07/01/15
Posts: 77
Loc: Sweden
Re: Chapuis Brousse 470 NE [Re: maral]
      #354720 - 30/06/21 02:00 AM

Beautiful rifle and very nice groupings! Sometimes load work obviously is straight forward....

I have a Chapuis orion O/U 8x57 IRS since about 5 years and feel happy with it. It took me some time to find a good load for both open sights and scope (regulated with norma oryx) but now it regulates with about 1"/50 m with open sights, slightly more with the scope attached. However- when I changed from a zeiss 1.25-4x24 to a Kaps 1-4x22 the regulation got worse and I had to work it out again.

Never had any issues with it and have used it quite a lot for driven hunts on moose, boar, fallow and roe. I believe the quality is close to e.g modern Merkels, albeit different style and feel. The wood work finish is pretty good as well. It's lightweight (3.2 kg) and very handy - whish the foreend was a bit thinner though, as I like tiny foreends, but that's possible to fix anyhow.



Edited by Nojden (30/06/21 02:18 AM)


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