What is your routine to keep as consistent as possible?

I have a PCP rifle and a hand pump. Obviously velocity starts to change over many shots, so I'm wondering, what is your routine to keep it as consistent as possible? I was thinking of pumping the gun up to it's limit, then use the chronograph to document 50 shots to see where the sweet spot is.

I've not been keeping track and I get sucked in and shoot a bunch then have to take a break to pump back up again...
 
Yes, but how did you determine how many? Just, chrono them? Test for accuracy?
Both, though I always start with a chronograph string from max pressure, down to the point it's obviously off the regulator (or out of the flat "sweet spot" of an unregulated rifle). Then test for accuracy at various points in the pressure curve. Often, you can squeeze out a handful of accurate shots after velocity starts declining noticeably (per the chrono), especially at shorter range. Not always though, especially if you're stretching the distance.

Example- had a Huntsman (regulated) that showed no measurable difference in point of impact (out to 30 yards) for 8-10 shots after pressure had clearly gone below the regulator setting. But at 50 yards, saw a noticeable drop within a few shots.
 
mechanism? lol ... tether to a fill bottle using an external reg set to the lower end of the sweet spot determined by a chrono and accuracy test to find the 'dead nuts' pressure spot .. then surround yourself with about 20 filled mags and several tins of pellets, then bobs your uncle lol .. go to town with it for several thousand rounds or until your trigger finger gets a cramp, whichever comes first ..
 
From some years to now they are selling diverse rifles with integrated regulator.

That of your question is the work that the regulator achieves.

In the following threads is an explanation of how the regulator works:

 
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