Have ground/filed big flats (pretty much the sides of the srtiker are just along for the ride, the top holds the pin and the bottom acts as a sear..so can pretty much just take away the sides).
Others got lathed...but they are hard and will take a TC lathe bit. Can anneal them soft, lathe them (and they come out prettier this way), then harden them again (either heat harden the whole part or case harden the outer layer (KaseKnit).
Do have to say, the best combination of shot count has come from a medium lightened striker and a slightly strangled off transfer port. Allows almost a full fill pressure (close to 1800psi).
The striker force sets the fill pressure...its the force that knocks open the valve. Get the striker very light, and it just can't work up the "oomph" to open the valve at higher pressures. Does save gas, as the valve tends to open and close faster with a lighter striker. I'd lighten and test, not going any lighter than will open the valve at 1600-1800psi.
At that point, you have the operating pressure pretty well set. To get more shots, have to control the gas release to the pellet.
Would be good to start trying smaller transfer ports. May find that a slightly smaller transfer port does little to change velocity, but adds a few shots per fill. Humans don't intuit circle area worth a crap...going from .12" to '1" doesn't seem like much...but its going from .0113CI to .0079 CI.
Ideally, you'd stop reducing transfer port size once you hit the energy level you wanted...but if you want "all I can get" then don't do EITHER the light striker or the smaller transfer port.
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