Thanks. Testing has shown my goals are not out of reach. It IS cool to rival a Lr since I have spent years messing with the 22. I have built several on the Lr platform. Singles to br bolt actions. My designs. I have read Motorheads thread (although he doesn’t believe so and was less than encouraging in his reply in Bob’s house). I do appreciate his and others work in this area. The work and testing in this area and the documentation has been priceless. My ideas/changes are only to satisfy my own ideas/questions. I like to build. And I LOVE to shoot. Dave
Barrel is 25 3/4”. According to Bobs ‘lofty goal’ formula, I will be pushing it to get to 100fpe. If my figuring is correct, I will have to be just a touch over 50% of ‘possible’ fpe with that bbl and a reasonable pressure (2600 I think is what I figured it at). And from my understanding, above 50% is difficult.
With these things in mind, could we limit the travel within the chamber to just the cracking distance, run a large vent to speed the neutralizing of the bv, extend the poppet stem back out to allow hammer movement (dwell) and ‘float’ the balance chamber not only a touch radially (for machining tolerance) but also allow it to travel with the poppet away from valve seat. If the bv gets negated as soon as valve cracks, then we might possibly have a larger tuning window without altering the valve itself.