Today was a warm day and I had some spare time. So I did range tests on all of my elite heavy hitters.These where the results(tape measured even the distance):

CPS 10K : 59-62 feet (12X)

CPS 21K : 56-58 feet (12X)

CPS 2000 Mk.2 #1 : 59-62 feet (22X)

CPS 2000 Mk.2 #2 : 38-40 feet (22X)

CPS 2000 Mk.2 #3 : 56-58 feet (22X)

CPS 2500 : 45 feet (22X)
48-50 feet (10X)
48-50 feet (5x)

There was minimal wind when doing the tests.
The CPS K-Moded guns performed as expected. But one CPS 2000 Mk.2 reaching the 60 feet mark was fairly suprising. Also, one of my CPS 2000s Mk.2 performed like a standard CPS 2500 20X nozzle. So I assume that that one is a lemon. But even for a lemon, its acceptable. The third CPS 2000 did above average.
My biggest suprise was probably the CPS 2500 outperforming completly any CPS 2500 I had in the past reaching 45 feet with 20X and 50 feet with any other nozzle. So I got myself a freak CPS2500 here which is prity sweet.

So there you go. And to top it all of, here are some pictures:

That's right where it should be. I have yet to see a 2500 that can't hit those marks. Despite others sying it's lower, I'm not convinced seeing as all 4 2500s of my team shoot those same distances.

Interesting variety with the 2000s. Looks like one of them is a dud. My team's 2100s are like that, some shoot 40, with one loner shooting 30.

Nice. How is it though that you have 3 CPS 2k's lol?

In that case I would have had 4 Lemons in the past. My first CPS 2500 was actualy very much like this one shooting its 20X stream 45 feet.

2 were from ebay, while one was a trade with a Desert Eagle Airsoft springer(not available in Canada), so we both had a good deal.