Well thing have changed when it comes to that. The vent liners especially the Lehigh are an easy modification an for 5 dollars and a couple of minutes you have a brand new one. As far as how long the original lasts the first one that came in my Triumph which I bought right away when they first came out just got to the point where I needed to do some thing about it, and while I replaced it I was working on putting a vent liner in it right away as I knew I could fall back on the new one. It has a vent liner in it and I have been shooting it quite a bit since then. When I bored the hole to thread I bored it all the way through and then only threaded it as far as I needed, it works much better than original as it does not carbon up even 25% of what it used to and I think it actually improve the accuracy. It also makes it much easier to give a good cleaning as I take the vent liner out a couple times a year and clean every thing to a polish.
This will also work quite well on the Omega as Mike did his and likes it [ He use a different method and threaded his all the way through] He used a lathe and I do not have one any more as I let it go with the shop when I sold it. If you have a milling table on your drill press it is easy to do well with out a lathe.
I have replace 3 in the 5 years I have owned the Omega but won't need to again.
As you probably know from being on here I shoot more than most, using about 15 to 18 pounds of powder a year, and I suspect one of the new peed Breach plug would last a lot of people a life time. Sorry I got so long Lee
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Lee
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