ronlaughlin
However, i sincerely believe, it provides no advantage for the Omega. Modifying the CVA breech plug is very much worth doing, in my opinion. For one thing, the steel of the CVA breech plug is softer than the steel of the Omega breech plug, and installing a vent liner makes for a far more durable flash hole.
Gosh! when I worked the Omega plug, I really thought it was soft. It drilled out very easily so if the CVA plug is softer - I can only think wow!
The reason I iniatially drilled that plug out was that I recommended to 'lemoyne' that he drill - tap - and install a Lehigh Vent Liner in his worn out Omega plug. Then to prove that it would work - I did one of mine, not because I was having a problem but just to show it could work. It did - it does... I also modify my Omega plugs for the 25acp which is also easy to do but I have not tried a vent liner in a ACP plug yet, cuase like you say it works great the way it is.
The most durable steel I have worked with in a breech plug has been the steel that Dave uses in the Lehigh plug... you know when you are drilling one of those, they are really a strong steel.