The tricky part of the build was the trigger group. Everything has to work together or nothing works.
I modeled the bolt after the Crosman Challenger.
I decided on a hollow bolt probe, in my mind this is the most efficient way to get the air to the base of the pellet.
Another mock up everything is coming together.
A rough pistol grip and shoulder stock.
For my first attempt I thought it turned out better than expected.
This group was shot before the stock was done. I mounted the gun in a vice on my bench.
Test shots over the Chrony Show it puts CPHP pellets out at 700fps. Not to shabby.
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