I assembled the 7mm Hayabusa today and fired it for the first time.... I tethered it to a regulator at 2900 psi and tested the hammer spring preload to determine if I have enough hammer strike to max the gun out at that pressure, and I do....



The velocity falls off slightly at the top end, not sure why, but I have seen it before.... It doesn't matter, as the gun would be an Air Hog at anything over 5 turns out from coil bind anyway.... The maximum FPE at 2900 psi was 193 FPE, which is right about where it should be using the 96.5 gr. Bob's Boattails, so I'm very pleased.... My new ShoeBox Compressor is at the Post Office and I'll be picking it up tomorrow, so within a few days I should have some shot strings to share with you....

Bob