Say goodbye to your normal PCP fill source! The Seneca Aspen PCP Air Rifle is a multi-pump PCP airgun that has everything built right in. Shoot for hours--free from air tanks, compressors, and handpumps.
Can the Hammer Spring be replaced with a stronger one? Anyone know the Hammer Springs K value? Even the dimensions will do because after watching the video, the best power was attained at approximately 2,929 psi for 36.8 fpe; thereafter, the power decreases, BUT! the efficiency went up and up from 9.4% at 3600 psi to 13.59% at 2,929 psi. I wish the Pyramid video had stated how many pumps it took to re-pump after 8 shots to 2,500 psi and then back up to 3,600 psi, (80 pumps from atmosphere 0 psi to 3,600 psi). Numbers don't lie, but you can lie with numbers and the laws of physics are not just really good ideas. Thank you
What is the volume of the cylinder?
Approx 200 cc
what is the barrel length?