Originally Posted by sven
At first I thought that the relativley heavy springer piston moves slower and builds the pressure more gradually than the light and fast opening valve from a PCP.
Then Rich reports he sees more deformation of the pellets in his springer so the peak pressure must be higher. This contradicts my first thought.
Now Jon says:
To clear this confusion about the deformation of pellets and consequently the wind sensitivity difference of springers and PCP's: Can anyone here make some pictures of pellets (from the same tin preferably) shot from a 12fpe springer and a 12fpe PCP?
Shoot them in a big bucket of water or sawdust and make some pic's. See which rifle causes more deformation to the pellet.
I do not own a 12fpe springer otherwise I would do it myself.
Can't do it like that. The deceleration caused by the impact makes the tail bell shaped. Only way I've seen something not do it is Sam Barr's putty, or catching them in something soft at 100+ yds.