How long can you leave a PCP cocked and not damage spring? A friend left his Cricket cocked for several days and asked me if he might have screwed up his cocking spring.
Only his Chrony knows. If he as not experienced a drop in velocity then everything is fine. I knew an instrumentation company (Teledyne Geotech), who kept their springs stored under stress for 5 years before they were shipped out, so they would not drift in character with use. No air rifle company does this extreme step.
I left one of my air rifles fully cocked for about two months once and was wondering the same thing. But there was no drop in velocity. But you just never know tell ya test it.
This question has been asked in regards to springers which have a powerful mainspring that does the work of pushing the pellet. I've read of experiments where springers were left cocked for months. The velocity did drop a bit, but not drastically.