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Double Rifles, Single Shots & Combinations >> Double Rifles

Marrakai
.416 member

Reged: 09/01/03
Posts: 3729
Loc: Darwin, Top End of Australia

Re: Help requested again
12/02/08 07:36 PM

pc:
Assuming the cartridge is .500 x 3 1/4 Express (straight case), then you should start with 72gr Hodgdon's Varget and a 440gr thin-jacketed or hard-cast bullet. Wad-up to fill the air-space, either foam, saddle-felt, or a big ball of dacron.

That load is 'factory-equivalent' for the 3-inch case, so be prepared to add a couple more grains for the extra case capacity. Hopefully the extra 20 grains of your 460-grain bullets will not make a significant difference, otherwise they will want to shoot slightly apart. Pressure should be well below 10 tons.

Use a chronograph, and don't exceed 1850 fps without really sitting down and thinking about what you are doing!

...and chuck those bloody 550-grainers away! The rifle has already been proofed!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

Post Extras

Entire topic
Subject	Posted by	Posted on
my "new" H&H double rifle	pistolchamp	16/01/08 02:12 PM
Re: my "new" H&H double rifle	50Calshtr	16/02/08 10:25 AM
Re: my "new" H&H double rifle	Collath_500BPE	13/02/08 05:05 PM
Re: my "new" H&H double rifle	Marrakai	13/02/08 10:38 PM
Re: my "new" H&H double rifle	JabaliHunter	14/02/08 05:11 AM
Re: my "new" H&H double rifle	50Calshtr	14/02/08 10:35 AM
Re: my "new" H&H double rifle	CptCurl	14/02/08 01:22 PM
Re: my "new" H&H double rifle	50Calshtr	15/02/08 12:19 AM
Re: my "new" H&H double rifle	CptCurl	15/02/08 11:13 PM
Kynoch ammo	pistolchamp	16/02/08 10:04 AM
Re: Kynoch ammo	500Nitro	16/02/08 10:18 AM
Okay I'm asking... again	pistolchamp	16/02/08 10:29 AM
I finally did it myself	pistolchamp	11/04/08 10:51 PM
and I did it again	pistolchamp	07/08/08 11:20 PM
Re: and I did it again	Nakihunter	08/08/08 09:31 AM
pics to follow	pistolchamp	09/08/08 12:36 AM
Re: pics to follow	Paul	10/08/08 04:36 PM
Collath you are a cruel master	pistolchamp	14/02/08 04:54 AM
Re: my "new" H&H double rifle	CptCurl	16/01/08 11:16 PM
Re: my "new" H&H double rifle	pistolchamp	17/01/08 04:53 AM
Re: my "new" H&H double rifle	JabaliHunter	17/01/08 06:39 PM
Re: my "new" H&H double rifle	mickey	17/01/08 07:20 PM
Re: my "new" H&H double rifle	pistolchamp	27/01/08 11:22 PM
Re: my "new" H&H double rifle	Bill_Cooley	28/01/08 03:06 PM
Help requested again	pistolchamp	12/02/08 09:22 AM
Re: Help requested again	Marrakai	12/02/08 07:36 PM
Thank you very much!	pistolchamp	13/02/08 08:29 AM
Re: my "new" H&H double rifle	Marrakai	28/01/08 12:47 AM
Re: my "new" H&H double rifle	bonanza	28/01/08 01:17 AM
Re: my "new" H&H double rifle	philbert	16/01/08 03:11 PM
Re: my "new" H&H double rifle	JabaliHunter	16/01/08 05:27 PM

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