Originally Posted by
Grouse45
Congratulations on the vent-liners. 100 shots and know sign of wear is excellent in my opinion.
The breech plug you show pictures of looks terrible. That primer pocket around the o ring looks plugged very bad. Not something i would use/trust that's for sure. I guess that's why you do testing.
Myself, i am curious about which is harder. The heat treated Lehigh vent liner, or the stainless steel of these cap screws that i made into vent liner.
You're the one that writes that one needs at least a 5/32 flame channel, and a 0.032" flash hole. The appearance of the plug after 24 shots, more or less verify what you write. I haven't cleaned the rifle or plug yet, but i did test to see what size drill, would fit into the remaining opening........1/16".
It is also conceivable to me that the primer seat in this breech plug wouldn't have been ruined, had the flame channel been 5/32", and the flash hole been 0.032".
What ever; the breech plug as it is, ignites BH in sub zero weather, and when it is nearly plugged up with carbon.
Another thing i wonder is, would i get better results with 130g BH, if i had a larger flame channel, and a larger flash hole.