Finally got it together, and did a bit of a trial at the gravel pit today.
I guess pix first...
There it is in it's entirety. Discovery based 3K custom tube by Derek Vinyard.
It's in .177...
One of the most important components to go into a Crosman based build. It's a 1701-P/p-rod grip frame and trigger group. Trigger is a compound lever system, and a huge improvement over the old XX based triggers. This one is set to break at 2.5 lbs, 2 stage, like an icicle. Much improved shooting control.
There's also a Crosman Challenger RVA on the rifle.
Not bad for a first trial. This shot was with the RVA in as far as it would go, and about 2400 psi in the tube. I'm much impressed with this performance, especially with a "hurry-up" home made hammer. Hammer spring is a standard discovery spring, and the valve is completely stock. I've changed nothing in it yet. Crosman Premier 10.5 gr ultra mag domes...
Scope is one of my old stand-by Banner 6-24X 42mm A/O's.
Just as a point of general interest, with the RVA knob completely out, and 2550 psi in the tube, 133 fps
Today's test was more functionality than anything else. It fires and holds air, and there's no leaks during the firing cycle, despite no front breech screw in the gun. The 22-XX bbl band is enough for air-tightness, surprisingly.
Very cold and windy today. I didn't try to log strings, or even get the scope zeroed, and I'm happier that the proverbial pig right now!
Big thanks to both Eric at http://scopesandammo.com for parts supply, and Derek for the tube.
I got a bit of work ahead of me getting this rifle to it's potential, and there's going to be quite a bit more on this in the future.
Regards,
Doc Sharptail
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