Jimzilla--Painter and others have given you a lot of good advice above. Here is what I would add.
With cooler weather coming or already here in some parts, the slide lube becomes critical for any .22. I only use light oil in the cooler months and add some just before each range session. If I have time, I'll remove the slide and run some Q-tips through the rails, then add oil. The powder residue builds up everywhere on the .22 frame and slide. I'll also brush the chamber (not the barrel) and push a patch through the barrel if I have time. Then I pick the breech face and extractor and add a drop of oil to the extractor near the pivot pin and work it in. If the firing pin hole is clear, the gun is good for a few hundred rounds this way.
If it is really cold, I have to go to high velocity ammo to get the gun to cycle consistently, otherwise mine will operate fine on standard velocity.
A 17# hammer spring will make it slightly easier for the slide to cycle also, with just a little less resistance when it cocks the hammer. That should be true in a P-07 or a 75.
Side note. I don't clean the frame parts. Its futile. I DO clean the frame rails, chamber, extractor, magazines, firing pin hole, and breach face regularly. If I don't, every .22 I have will quit running, simple as that.
Find ammo that is readily available and which runs in your gun in your shooting conditions and stick with it. I don't change anything once I find something that works.
Joe
