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Double Rifles, Single Shots & Combinations >> Double Rifles

tinker
.416 member


Reged: 12/03/05
Posts: 4835
Loc: Nevada
Re: Long shotgun actions
      05/03/06 03:13 AM

Wooo golly!

Quarter inch thick chamber walls. That's the stuff successful hot proofs are made of.

About venting as a percaution for the possible blown primer...
In a conversation with Geoffroy Gourmet some time last year we'd been discussing setting up an R series Darne for hot bore rifle loads. The action we were talking about didn't have the typical gas seal discs on the breech face like the V series guns have, and he noted that a great way to vent the primers was to take a graver and cut a circle around the firing pin holes on the breech face, and from those circles make a cut just as deep (.020" or so) from the edge of the circles running down the breech face to just about where the breech face meets the action flats. The circle should be just about the same diameter as the primer. This way, the little groove doesn't allow the primer to deform into it during firing, but allows a path of least resistence for blowby gas out to the atsmophere -- at pretty much the same spot gas valves would blow via vented pin bushings, without damage to the action. He noted that this was a typical method of venting guns that don't have pin bushings. Since then I've had my eyes out for such detail and have seen a few Liege and Ferlach guns with this feature, some of them had a groove cut connecting the circles between the two firing pin locations effectively giving twice the venting volume to each firing pin.
Pretty simple detail, takes much less time to perform on the gun, and it'll do well to work along with vented striker bushings if that ends up happening in the future of the gun as well.

Looks like this


Marrakai, can you measure the diameter of those firing pins for me and guesstimate the radius in inches on the firing pin tips please?


--Tinker



--------------------
--Self-Appointed Colonel, DRSS--



"It IS a dangerous game, and so named for a reason, and you can't play from the keyboard. " --Some Old Texan...

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Subject Posted by Posted on
* Building a double rifle Judson 12/10/05 07:07 AM
. * * Re: Building a double rifle DoubleD   12/04/06 04:18 AM
. * * Re: Building a double rifle AkMike   12/04/06 04:04 PM
. * * Re: Building a double rifle DoubleD   13/04/06 01:06 AM
. * * Re: Building a double rifle Ron_Vella   14/04/06 05:48 AM
. * * Re: Building a double rifle Judson   14/04/06 08:14 AM
. * * Re: Building a double rifle Ron_Vella   14/04/06 08:52 AM
. * * Re: Building a double rifle Judson   14/04/06 09:48 AM
. * * Re: Building a double rifle Ron_Vella   14/04/06 11:28 AM
. * * Re: Building a double rifle Judson   15/04/06 08:59 AM
. * * Re: Building a double rifle NE450No2   14/04/06 02:05 PM
. * * Re: Building a double rifle Judson   16/04/06 11:10 AM
. * * Re: Building a double rifle DoubleD   16/04/06 08:43 PM
. * * Re: Building a double rifle Judson   17/04/06 08:39 AM
. * * Re: Building a double rifle BlainSmipy   20/05/06 02:47 AM
. * * Re: Building a double rifle Judson   20/05/06 07:55 AM
. * * Re: Building a double rifle Judson   19/05/06 06:02 AM
. * * Re: Building a double rifle 500Nitro   16/04/06 09:10 PM
. * * Re: Building a double rifle banzaibird   17/04/06 01:08 AM
. * * Re: Building a double rifle BlainSmipy   20/05/06 02:25 PM
. * * Re: Building a double rifle DoubleD   17/04/06 03:29 AM
. * * Re: Building a double rifle Judson   15/04/06 09:07 AM
. * * Re: Building a double rifle 500Nitro   15/04/06 10:07 AM
. * * Re: Building a double rifle Judson   16/04/06 11:05 AM
. * * Re: Building a double rifle 577500WR   15/04/06 10:49 AM
. * * Re: Building a double rifle 500Nitro   15/04/06 12:10 PM
. * * Re: Building a double rifle tinker   14/04/06 09:04 AM
. * * Re: Building a double rifle banzaibird   14/04/06 06:41 AM
. * * Re: Building a double rifle Judson   12/04/06 09:17 AM
. * * Re: Building a double rifle DoubleD   12/04/06 03:30 PM
. * * Re: Building a double rifle MauserRifle   12/10/05 11:41 AM
. * * Re: Building a double rifle Judson   13/10/05 08:39 AM
. * * Re: Building a double rifle 500Nitro   13/10/05 08:47 AM
. * * Re: Building a double rifle Judson   13/10/05 09:54 AM
. * * Re: Building a double rifle DarylS   14/10/05 03:04 AM
. * * Re: Building a double rifle Judson   14/10/05 09:22 AM
. * * Re: Building a double rifle Judson   16/10/05 08:39 AM
. * * Re: Building a double rifle Marrakai   16/10/05 12:03 PM
. * * Re: Building a double rifle Judson   17/10/05 10:12 AM
. * * Re: Building a double rifle Judson   17/10/05 10:49 AM
. * * Re: Building a double rifle NE450No2   17/10/05 04:27 PM
. * * Re: Building a double rifle Judson   18/10/05 09:14 AM
. * * Re: Building a double rifle JPeterson   18/10/05 09:34 AM
. * * Re: Building a double rifle NE450No2   18/10/05 06:08 PM
. * * Re: Building a double rifle Marrakai   18/10/05 07:08 PM
. * * Re: Building a double rifle Judson   19/10/05 07:52 AM
. * * Re: Building a double rifle Judson   20/10/05 08:21 AM
. * * Re: Building a double rifle nopride2   23/10/05 12:26 PM
. * * Re: Building a double rifle MauserRifle   20/10/05 11:20 AM
. * * Re: Building a double rifle Judson   22/10/05 08:54 AM
. * * Re: Building a double rifle pwm   23/10/05 03:53 AM
. * * Re: Building a double rifle DarylS   23/10/05 04:08 AM
. * * Re: Building a double rifle Judson   23/10/05 09:08 AM
. * * Re: Building a double rifle mehulkamdar   23/10/05 01:47 PM
. * * Re: Building a double rifle mickey   23/10/05 02:41 PM
. * * Re: Building a double rifle Judson   23/10/05 10:04 PM
. * * Re: Building a double rifle Judson   24/10/05 10:44 AM
. * * Re: Building a double rifle Judson   25/10/05 08:06 AM
. * * Re: Building a double rifle Judson   28/10/05 08:34 AM
. * * Re: Building a double rifle MauserRifle   28/10/05 11:35 AM
. * * Re: Building a double rifle Judson   31/10/05 11:24 AM
. * * Re: Building a double rifle Marrakai   31/10/05 02:25 PM
. * * Re: Building a double rifle Judson   01/11/05 11:05 AM
. * * Re: Building a double rifle mehulkamdar   04/11/05 01:53 PM
. * * Re: Building a double rifle Judson   04/11/05 10:52 AM
. * * Re: Building a double rifle Chasseur   04/11/05 02:33 PM
. * * Re: Building a double rifle mickey   04/11/05 02:48 PM
. * * Re: Building a double rifle Judson   05/11/05 09:35 AM
. * * Re: Building a double rifle MauserRifle   05/11/05 12:39 PM
. * * Re: Building a double rifle Judson   06/11/05 11:13 AM
. * * Re: Building a double rifle tinker   06/11/05 11:42 AM
. * * Re: Building a double rifle Judson   10/11/05 10:39 AM
. * * Re: Building a double rifle doublegunfan   12/11/05 06:06 AM
. * * Re: Building a double rifle Judson   12/11/05 11:16 AM
. * * Re: Building a double rifle Judson   12/02/06 10:59 AM
. * * Re: Building a double rifle banzaibird   05/11/05 09:45 AM
. * * Re: Building a double rifle BlainSmipy   14/02/06 04:27 AM
. * * Re: Building a double rifle banzaibird   14/02/06 05:03 AM
. * * 500NE BlainSmipy   16/02/06 01:45 AM
. * * Re: Building a double rifle Judson   19/02/06 12:05 PM
. * * 9.3x74R BlainSmipy   20/02/06 05:09 AM
. * * Re: Building a double rifle Judson   20/02/06 12:45 PM
. * * Re: Building a double rifle Marrakai   20/02/06 02:53 PM
. * * Re: Building a double rifle bonanza   24/02/06 08:48 AM
. * * Re: Building a double rifle Marrakai   24/02/06 03:44 PM
. * * 470 NE Loads BlainSmipy   25/02/06 03:48 AM
. * * Long shotgun actions tinker   24/02/06 04:28 PM
. * * Re: Long shotgun actions Marrakai   24/02/06 09:35 PM
. * * Re: Long shotgun actions BlainSmipy   04/03/06 11:24 AM
. * * Re: Long shotgun actions Marrakai   04/03/06 10:55 PM
. * * Re: Long shotgun actions tinker   05/03/06 03:13 AM
. * * Re: Long shotgun actions Judson   05/03/06 12:03 PM
. * * Re: Long shotgun actions 500Nitro   05/03/06 12:53 PM
. * * Re: Long shotgun actions Marrakai   05/03/06 12:50 PM
. * * Re: Long shotgun actions BlainSmipy   05/03/06 02:19 PM
. * * Re: Long shotgun actions Marrakai   05/03/06 05:50 PM
. * * Re: Long shotgun actions Marrakai   05/03/06 09:37 PM
. * * Re: Long shotgun actions banzaibird   06/03/06 01:08 AM
. * * Re: Long shotgun actions oupa   14/03/06 02:21 PM
. * * Re: Long shotgun actions 4seventy   14/03/06 05:23 PM
. * * Re: Long shotgun actions Marrakai   06/03/06 07:32 PM
. * * Re: Long shotgun actions banzaibird   07/03/06 12:59 AM
. * * Re: Long shotgun actions doublegunfan   06/03/06 01:37 AM
. * * Re: Long shotgun actions Judson   09/03/06 12:12 PM
. * * Re: Long shotgun actions BlainSmipy   09/03/06 06:06 PM
. * * Re: Long shotgun actions Judson   14/03/06 01:28 PM
. * * Hollis 500/450 BlainSmipy   15/03/06 03:57 AM
. * * Re: 50-90 Regulation load and update Judson   15/03/06 11:02 AM
. * * Re: 50-90 Regulation load and update Judson   15/03/06 11:43 AM
. * * This new action... tinker   15/03/06 12:15 PM
. * * Re: This new action... Judson   16/03/06 11:59 AM
. * * Re: This new action... banzaibird   16/03/06 01:18 PM
. * * Re: This new action... Judson   16/03/06 01:53 PM
. * * Re: This new action... banzaibird   17/03/06 10:52 AM
. * * Re: This new action... banzaibird   17/03/06 10:51 AM
. * * Re: This new action... Judson   18/03/06 11:08 AM
. * * Re: This new action... banzaibird   18/03/06 01:04 PM
. * * Re: This new action... Judson   18/03/06 04:54 PM
. * * Re: This new action... WildCattle   03/04/06 02:27 PM
. * * Re: This new action... BlainSmipy   19/03/06 01:11 AM
. * * Re: This new action... Judson   19/03/06 10:20 AM
. * * Re: This new action... banzaibird   19/03/06 11:23 AM
. * * Re: This new action... Judson   03/04/06 12:06 PM
. * * Re: This new action... banzaibird   04/04/06 11:49 AM
. * * Re: This new action... Judson   06/04/06 08:42 AM
. * * Re: This new action... BlainSmipy   04/04/06 12:23 PM
. * * Checkering... tinker   03/04/06 12:24 PM
. * * Re: This new action... CptCurlAdministrator   19/03/06 03:40 AM
. * * Re: 50-90 Regulation load and update DarylS   15/03/06 05:08 AM
. * * 465NE BlainSmipy   06/03/06 04:34 AM
. * * Re: Long shotgun actions doublegunfan   07/03/06 01:23 AM
. * * Hollis 500/450 BlainSmipy   07/03/06 05:12 AM
. * * Re: Long shotgun actions Judson   07/03/06 09:22 AM
. * * Re: Long shotgun actions BlainSmipy   07/03/06 11:25 AM
. * * Re: Long shotgun actions Marrakai   07/03/06 10:06 PM
. * * Re: Long shotgun actions BlainSmipy   08/03/06 03:31 AM
. * * Re: Long shotgun actions Marrakai   08/03/06 02:59 PM
. * * 500NE BlainSmipy   08/03/06 07:19 PM
. * * Re: Long shotgun actions tinker   08/03/06 03:55 PM
. * * Re: Long shotgun actions Marrakai   08/03/06 09:56 PM
. * * Re: Long shotgun actions DarylS   09/03/06 07:24 AM
. * * Re: Long shotgun actions banzaibird   08/03/06 03:54 AM
. * * 475NE BlainSmipy   08/03/06 05:24 AM
. * * Merkel 470 BlainSmipy   08/03/06 10:24 AM
. * * Re: Long shotgun actions Grizzly   08/03/06 10:39 AM
. * * Re: Long shotgun actions DarylS   08/03/06 05:54 AM
. * * Re: Long shotgun actions bonanza   08/03/06 06:07 AM
. * * Striker bushings, questions of safety... tinker   06/03/06 03:22 AM
. * * Re: Long shotgun actions BlainSmipy   05/03/06 04:29 AM
. * * Re: Long shotgun actions banzaibird   24/02/06 05:10 PM
. * * Re: Long shotgun actions deant   25/02/06 04:45 AM
. * * Re: Long shotgun actions banzaibird   25/02/06 09:53 AM
. * * Re: Long shotgun actions deant   26/02/06 01:28 AM
. * * Re: Long shotgun actions Judson   03/03/06 10:54 AM
. * * Re: Long shotgun actions tinker   03/03/06 12:29 PM
. * * Re: Long shotgun actions tinker   25/02/06 10:28 AM
. * * Re: Long shotgun actions tinker   25/02/06 01:52 AM
. * * Re: Building a double rifle banzaibird   24/02/06 04:09 PM
. * * Re: Building a double rifle banzaibird   24/02/06 09:43 AM
. * * Hollis 500/450 BlainSmipy   24/02/06 03:00 PM
. * * Re: Building a double rifle banzaibird   24/02/06 09:59 AM
. * * Re: Building a double rifle banzaibird   24/02/06 11:24 AM
. * * 577 BlainSmipy   24/02/06 03:04 PM
. * * Re: Building a double rifle vigillinus   23/02/06 06:53 PM
. * * Re: Building a double rifle NE450No2   24/02/06 07:44 AM
. * * Re: Building a double rifle bonanza   24/02/06 08:31 AM
. * * Re: Building a double rifle BlainSmipy   20/02/06 05:01 AM
. * * Re: Building a double rifle banzaibird   14/02/06 05:07 AM
. * * Re: Building a double rifle BlainSmipy   14/02/06 07:32 AM
. * * Re: Building a double rifle banzaibird   14/02/06 09:36 AM
. * * Re: Building a double rifle Judson   15/02/06 11:55 AM
. * * Re: Building a double rifle 475Guy   04/11/05 01:44 PM
. * * Re: Building a double rifle JPeterson   01/11/05 11:11 AM
. * * Re: Building a double rifle mickey   01/11/05 03:03 PM
. * * Re: Building a double rifle mickey   22/10/05 10:29 AM
. * * Re: Building a double rifle tinker   20/10/05 11:01 AM
. * * Re: Building a double rifle Will   18/10/05 11:29 PM
. * * Re: Building a double rifle mickey   12/10/05 09:06 AM
. * * Re: Building a double rifle JPeterson   12/10/05 09:18 AM

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