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- Dec 29, 2007
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The vent liner is brazed in place?? If so, in my experience, the process of brazing the vent liner drastically shortens longevity. If memory serves, i have had four Knight breech plugs with the brazed vent liner. Flash hole erosion was surprisingly quick, all four times. After the brazed vent was removed, all the same plugs with a now removable vent liner worked good.ShawnT said:......I have just started testing a new BP for the Knight KRB7 that has a ventliner in it......
Well, i intended to measure the vent liner in the UltraLight, but am unable to do so; the rifle is loaded. Have been shooting it with iron sights, getting it ready for next season. The breech plug no longer with a brazed vent liner; now has a home made vent liner that is wearing well, but cannot recall what it measured the last time, after removal, and cleaning. Thinking it now measures 0.029", but am not sure. Powder charge has been only 90 grain Blackhorn, so good longevity is expected. Haven't shot the rifle a whole heck a lot of times this winter neither. Some where around 90 shots i would guess.