I have a single pump RWS 34. No regulator. One pump thats all, around 700 fts. They advertise 1000 fts, but that is always with the lightest pellet, 700 or 800 is more realistic.
Would think a larger exit port would reduce fts, like a garden hose.
On pump guns, i never noticed any change with the speed of pumping.
I dont know much about the PCP airguns, thats a different system. Seems like you can regulate pressure on some of them, but could be wrong.
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