Rifle Primer--Zero Degrees
11-12-2014, 01:54 PM
#11
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
11-12-2014, 01:57 PM
#12
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
11-12-2014, 02:10 PM
#13
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
The OAL of the plug hasn't changed from what TC made it.
The diameter of the primer pocket was increased to allow the pictured adapters from PR Bullet to fit.
The depth of the primer pocket was increased to allow the use of a 1.5mm thick metric o-ring to be installed before the adapter, and still allow the action of the Omega to close. The depth of the primer pocket was increased about 0.75 mm, if i recall correctly; perhaps a little more.
11-12-2014, 02:41 PM
#15
Nontypical Buck
Join Date: Feb 2003
Location: Virginia / West Virginia
Posts: 4,906
(I can't believe you guys are that cold already...no thanks!)
11-12-2014, 03:28 PM
#16
Giant Nontypical
Join Date: Feb 2011
Location: Colorado
Posts: 9,557
Came on kind of sudden. It was 65 degrees and sunny last week. Today it's 5 degrees, and has been snowing straight since 9am. It's hard to adjust that fast.
I still took my dog for hike in the mountains today, but I was an icicle when I got back to the Jeep.
I still took my dog for hike in the mountains today, but I was an icicle when I got back to the Jeep.
11-12-2014, 03:39 PM
#17
Boone & Crockett
Join Date: Apr 2007
Location: River Ridge, LA (Suburb of New Orleans)
Posts: 10,917
Originally Posted by Muley Hunter: Well, he did shoot from the truck with the heater going.
Posted by ronlaughlin: Yes i did.. seems strange Semi didn't appreciate that fact, but then we all know him..
11-12-2014, 05:00 PM
#19
Nontypical Buck
Thread Starter
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
The new diameter of the primer pocket which allows the adapters is 0.282".
As mentioned before the new diameter of the flash hole is 0.034".
The depth of the primer pocket is kinda tricky, but not really. It has to be deep enough to allow the action of the Omega to close on the adapter plus the o-ring which is 1.5mm thick, but not so deep the primer doesn't fire when struck by the firing pin. What i guessed at the second time is about half the thickness of the o-ring. The first plug i drilled, i drilled too deep, and so didn't get reliable primer ignition when struck by the firing pin.
The 0-ring needs to be hard enough when compressed to hold the primer so it ignites when struck by the firing pin, but loose enough to allow the action to close with reasonable pressure. That seems to be about half the thickness of the o-ring--0.75mm.
The depth of the primer pocket on the plug purchased from PR Bullet is exactly the same as the OEM TC plug. Neither utilizes an o-ring.
11-12-2014, 05:50 PM
#20
Nontypical Buck
Join Date: Jul 2014
Location: Near a lake with no fish
Posts: 1,077
The adapter hole is about 0.082". The flame channel is OEM--0.125"
The new diameter of the primer pocket which allows the adapters is 0.282".
As mentioned before the new diameter of the flash hole is 0.034".
The depth of the primer pocket is kinda tricky, but not really. It has to be deep enough to allow the action of the Omega to close on the adapter plus the o-ring which is 1.5mm thick, but not so deep the primer doesn't fire when struck by the firing pin. What i guessed at the second time is about half the thickness of the o-ring. The first plug i drilled, i drilled too deep, and so didn't get reliable primer ignition when struck by the firing pin.
The 0-ring needs to be hard enough when compressed to hold the primer so it ignites when struck by the firing pin, but loose enough to allow the action to close with reasonable pressure. That seems to be about half the thickness of the o-ring--0.75mm.
The depth of the primer pocket on the plug purchased from PR Bullet is exactly the same as the OEM TC plug. Neither utilizes an o-ring.
The new diameter of the primer pocket which allows the adapters is 0.282".
As mentioned before the new diameter of the flash hole is 0.034".
The depth of the primer pocket is kinda tricky, but not really. It has to be deep enough to allow the action of the Omega to close on the adapter plus the o-ring which is 1.5mm thick, but not so deep the primer doesn't fire when struck by the firing pin. What i guessed at the second time is about half the thickness of the o-ring. The first plug i drilled, i drilled too deep, and so didn't get reliable primer ignition when struck by the firing pin.
The 0-ring needs to be hard enough when compressed to hold the primer so it ignites when struck by the firing pin, but loose enough to allow the action to close with reasonable pressure. That seems to be about half the thickness of the o-ring--0.75mm.
The depth of the primer pocket on the plug purchased from PR Bullet is exactly the same as the OEM TC plug. Neither utilizes an o-ring.
So the plug is drilled to accept the adaptor. The adaptor has a larger flash hole itself, then the charge goes through the breech plug .034" flash hole?
Here's the question...... So is the system akin to having two (2) flash holes? One in the adaptor and another smaller in the breech plug? If so, what length of flash channel is under the adaptor before it reaches the flash hole in the plug?