Originally Posted by Gm54-120

Get a hexhead drill bit too with Rons modded plug. The bit is cheap and it fits in a nut driver handle. Its also far easy to turn by hand.

Originally Posted by Josmund

I've been using a 1/8" bit for both the Knight / Lehigh Plug and the TC Omega plug. I know one is larger but can't remember which?

Can someone remind me? Also, anyone know the flame channel dimension on the White BPs?

Thanks

Originally Posted by ronlaughlin

Well, i can't say this is the only way you can successfully shoot Blackhorn in your rifle, because it is the only modification i have ever tried. Doing this modification has worked perfectly for me, so i never tried anything else. I have read about folks enlarging the flash hole with a # 65 drill, and then using magnum primers.. this supposedly worked. The flash hole grows with every shot, so enlarging it with a drill, isn't something i could do with good conscience.

Keep in mind the modification i do, allows one to replace the vent liner with a new one, when the flash hole gets to be too large. Another benefit of the modification is the diameter of the flame channel is increased to 5/32". The larger the flame channel, the more of the pressure from ignition it can absorb, and this reduces the pressure on the primer. The larger flame channel also allows more shots between cleaning. Another good thing about this modification is it allows one to use any shotgun primer. Any shotgun primer that is available for purchase locally will work. One doesn't need to search for magnum primers, or any specific brand, if they aren't readily available.

To clean the modified breech plug i remove the vent liner, then from the primer end, spin a 5/32" drill in a drill motor through the carbon build in the flame channel. Quick and easy it is. The wall of the flame channel, guides the drill, so it doesn't damage the threads. Then a soaking in a solvent loosens the soot left on the plug, so it can be easily removed.

Blackhorn is the only powder i have used ever since it was available for purchase, so i cannot say with first hand experience, the modified plug will allow you to shoot other powders. However, i have read that the modification allows one to shoot all other powders, including pellets.. True or no, i cannot say.

Originally Posted by ronlaughlin

Well, i can't say this is the only way you can successfully shoot Blackhorn in your rifle, because it is the only modification i have ever tried. Doing this modification has worked perfectly for me, so i never tried anything else. I have read about folks enlarging the flash hole with a # 65 drill, and then using magnum primers.. this supposedly worked. The flash hole grows with every shot, so enlarging it with a drill, isn't something i could do with good conscience.

Keep in mind the modification i do, allows one to replace the vent liner with a new one, when the flash hole gets to be too large. Another benefit of the modification is the diameter of the flame channel is increased to 5/32". The larger the flame channel, the more of the pressure from ignition it can absorb, and this reduces the pressure on the primer. The larger flame channel also allows more shots between cleaning. Another good thing about this modification is it allows one to use any shotgun primer. Any shotgun primer that is available for purchase locally will work. One doesn't need to search for magnum primers, or any specific brand, if they aren't readily available.

To clean the modified breech plug i remove the vent liner, then from the primer end, spin a 5/32" drill in a drill motor through the carbon build in the flame channel. Quick and easy it is. The wall of the flame channel, guides the drill, so it doesn't damage the threads. Then a soaking in a solvent loosens the soot left on the plug, so it can be easily removed.

Blackhorn is the only powder i have used ever since it was available for purchase, so i cannot say with first hand experience, the modified plug will allow you to shoot other powders. However, i have read that the modification allows one to shoot all other powders, including pellets.. True or no, i cannot say.