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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

DarylS
.700 member

Reged: 10/08/05
Posts: 27817
Loc: Beautiful British Columbia, Ca...

Re: my 12 bore finished
24/11/12 03:47 PM

I think clays and red dot are too fast. SR7625 would be the fastest I'd try - and would try longshot if I had some.

My own work was all with round balls and SR4756 and SR7625 powders. I started with cup wads (gas check off a WWAA12) cup-up under the undersized ball and the top load I could find for a 1 1/8ounce charge of shot with that powder. I used fiber wads to get the correct height for folded crimps. I then increased the charge to obtain 1,550fps and felt I'd hit close to what the original 7 dram BP (191gr.) load ran - ie: 1,550fps. It worked well in my double shooting like a rifle to 50yards and like an exceptional smoothbore to 10 meters. I was able to hold offhand on a 12" steel plate at that range, shooting offhand and alternating barrels, right, left, reload, right, left. I also mounted a scope on the shotgun for load testing - no rifling.
See Ed huble's thrad on 12 bore from hell. Start on page 1 if not familiar with the thread and you will find good 'data' in there somewhere for using something like H4227- slow pistol, fast rifle powder. Wads, crimps and primers are very important for good ignition with the slow powders.

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

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

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Entire topic
Subject	Posted by	Posted on
my 12 bore finished	Rolland	24/11/12 06:55 AM
Re: my 12 bore finished	Rolland	08/12/12 01:58 PM
Re: my 12 bore finished	Tallchief	09/12/12 02:30 AM
Re: my 12 bore finished	DarylS	09/12/12 04:59 AM
Re: my 12 bore finished	Rolland	26/11/12 11:13 AM
Re: my 12 bore finished	DarylS	27/11/12 03:49 AM
Re: my 12 bore finished	Rolland	27/11/12 07:41 PM
Re: my 12 bore finished	DarylS	28/11/12 03:18 AM
Re: my 12 bore finished	Ardent	29/11/12 04:00 AM
Re: my 12 bore finished	Rolland	30/11/12 12:32 PM
Re: my 12 bore finished	Ardent	30/11/12 01:42 PM
Re: my 12 bore finished	DarylS	01/12/12 03:24 AM
Re: my 12 bore finished	Tallchief	07/12/12 02:28 PM
Re: my 12 bore finished	DarylS	08/12/12 05:27 AM
Re: my 12 bore finished	gatsby	08/12/12 06:14 AM
Re: my 12 bore finished	DarylS	08/12/12 08:54 AM
Re: my 12 bore finished	gatsby	08/12/12 09:19 AM
Re: my 12 bore finished	DarylS	08/12/12 12:53 PM
Re: my 12 bore finished	Rolland	27/11/12 11:08 AM
Re: my 12 bore finished	NitroX	27/11/12 02:46 PM
Re: my 12 bore finished	Rolland	27/11/12 07:38 PM
Re: my 12 bore finished	DarylS	24/11/12 07:03 AM
Re: my 12 bore finished	Birdhunter50	24/11/12 09:46 AM
Re: my 12 bore finished	Rolland	24/11/12 11:02 AM
Re: my 12 bore finished	DarylS	24/11/12 03:47 PM
Re: my 12 bore finished	NitroX	26/11/12 06:04 AM

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