Airgun Universe - Everything Airgun.

Homemade Airgun Reference

Useful Information at Your Fingertips
Here is some information I have compiled over the years that make life easier on me. I have done my best to make sure the info is as accurate as possible, but present the info for academic purposes only. Use at your own risk.

Buckshot Sizes - helps you determine what size is best for your barrel
Pipe Sizes - helps you determine applications/volumes of common pipe sizes and types
Nail Sizes/Weights - helps you select the right nail in making nail darts
Faucet Washer Sizes - helps you determine which one will make a good sealing face