- Joined
- Dec 29, 2007
- Messages
- 4,966
- Reaction score
- 3,164
Well, if the threads were sealed with grease, and the plug was tight, the soot is coming around the primer. That tells me the bolt is too short, and isn't holding the primer tight in the breech plug. The loose primer is allowing blow by around the nose of the primer. The disc extreme i now own has a bolt i took from another rifle, and when closed, it actually compresses the W209 primer between 0.005", and 0.010". This makes for a tight seal at the nose of the primer, and the result is zero soot on the spent primers. When i had 2 disc rifles, i used the one bolt for both rifles, because it made zero blow by in both rifles.
The Mountaineer i once owned had a perfect fit when using the W209 primer, and except for the fact one could see they had been popped, them primer looked like new, after they were fired.
The advantage of the bolt Knight rifles is the camming effect of the bolt when it is closed. Closing a good fitting bolt really makes a good seal between primer, and breech plug. If the space between the bolt face, and the primer socket is too loose, the primer isn't held tight, and as a result fired primers, the bolt face, the breech plug, and the all around, get all that messy soot on them.
The Mountaineer i once owned had a perfect fit when using the W209 primer, and except for the fact one could see they had been popped, them primer looked like new, after they were fired.
The advantage of the bolt Knight rifles is the camming effect of the bolt when it is closed. Closing a good fitting bolt really makes a good seal between primer, and breech plug. If the space between the bolt face, and the primer socket is too loose, the primer isn't held tight, and as a result fired primers, the bolt face, the breech plug, and the all around, get all that messy soot on them.