Search found 1 match
Search found 1 match • Page 1 of 1
- Sun Jan 03, 2010 5:58 pm
- Forum: Pneumatic Cannons
- Topic: Piston Valves Explained Visually
- Replies: 177
- Views: 135030
im building a piston valve airgun and i want to know if the diameter of the exhaust port should be bigger or smaller than that of the barrel, whichone woold give more power to the barrel?