Still learning, last shot question

@mikew, what you want to do is called "decocking" the air gun. Most PCPs will allow this. Silent_M describes the basic process: with the bolt cocked back and held to its fully pulled-back position (if gun has a side-lever, works the same) you want to keep your hold on the bolt/lever while using your other hand to pull the trigger. This should result in the bolt/lever being released by the trigger assembly (the sear) and allow you to slowly ease the bolt/lever forward until it seats in the breach. At this point the gun is "decocked" without having fired off any additional air and you can release the trigger. A few spring-action guns permit this kind of decocking as well but it's not at all common outside of the PCP world. If you don't get the timing right or something slips as you try this procedure for the first few times don't panic. Typically a PCP is not susceptible to damage from a dry-fire situation... but don't make a habit of it. Decocking is engineered into most PCPs for a reason, so learn to do it with confidence!
 
I’ve been shooting PCP air rifles for a while. Did not know this I always fired a shot into the dirt if I need to. Never too old 

You want to be REAL careful with air guns you best assume they are always loaded. In that respect I think they are potentially more likely to an accidental discharge the a powder burner

Blubberboy, is spot on, I totally agree with his last two sentences. 
 
Well designed pcp's will allow you to remove the magazine prior to the hammer catching the sear, marauders do this intentionally unless your trigger group + sear is adjusted too far forward.



But as already mentioned, if its required to engage the sear to remove the magazine, or preferred, then once the magazine is removed, you hold the cocking bolt/lever with one hand and pull the trigger with the other and slowly release the bolt/lever back into its uncocked position.



-Matt