Quote:
Originally Posted by ronlaughlin
It seems to me i have purchased somewhere near 28 vent liner from Lehigh. The flash hole i measured in them were 0.032". The flash hole in the two Knight nfpj breech plug i purchased, measured. 0.031". If this difference isn't due to them being coated, my question is why the difference? Why? Why is the flash hole of the Lehigh vent liner 0.001" smaller in the Knight nfpj breech plug, than it is when Lehigh sells, and sends it to my house?
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Ron read the post again... The spec for the Lehigh/Knight Vent Liner is to make the flash hole .031 and within the spec is an allowance of +.001 no minus spec is allowed. So it is entirely possible that you have vent liners with a .031 and .032 Flash Hole and both are with in specs.
Plus, I have posted in one of your threads before that they are not coated even offered the information directly from Knight that was emailed to me - they are not coated. I know you have a hard time believing a lot of things, but you could email Lehigh or Knight and ask your question directly rather supposing something that is not true.
Here is a copy of the email from Knight when I posed the question to them:
Mike,
We only apply Dyna-Tek protectant to the barrel only, internal and external. All threaded areas on the barrels are then chased with taps to assure all are correct. Please feel free to correct any nay sayers.
And just so you know all of my Vent Liners measure with my pin gages measure .031 and the .032 pin will not even come close to starting.
Even the Vent Liner with nearly 500 shots measures .031 but the .032 will almost start. But, remember I shoot primarily T7 so I can tell you what BH might do over that many shots.
replacement breechplug
