OkTwo different part numbers for valve seats in Nanny state Guns and full out FAC guns.
The AMP reg in the post 2021 dreamlines is the same AMP V2 in crown and impact I believe. It's not supposed to be set above 160.
I suggested he started a work up at 130bar. Because of my experience with my .25
From 100-135 bar I can reach acceptable velocities. It's between 128-135 that I can get the most out of mine. I've installed the high flow tp, probe, power tune spring and I'm shooting 34gr HMk2s at just over 900 if I roll the wheel up to 23 with my current preload and and reg setting... Almost 62fpe, and I still have another 1.5-2mm to go on the internal (micro)screw. At this setting Im only getting 55shots per 500cc tank fill (250-150).
I think it may be, in his eagerness to get power he may have it overdone. Could be plateaued... Rolled right past the sweet spot and it dropped slightly. He doesn't have the experience you or I do with these particular guns. I'm not expert ... But I have learned with 3 FX guns... Simply turning up the knob doesn't make big numbers.
I'm not trying to insult him or anything. But he's said himself "it doesnt make sense'.
I said the same exact thing when I was learning. It blew my freaking mind to see the velocity going up significantly as I lowered the pressure. I didn't quite understand the instructions. Using the Pw to tune and making brute force adjustments of the internal. When it could literally be a quarter rotation between perfect and absolute crap tune. From a sub 10fps extreme spread to 30fps. High lo hi lo. Wanting to pull my hair thinking I threw away $2500 (parts and scope etc included)
The plenums will possibly help the gun reach peak velocity and output at a lower pressure than without
i got the pellet power kit and i installed the spring and the heaviest hammer, the probe not yet..
after putting the 13.2gram hammer nothing changed- i still could not get my fps to drop at 130bar reg so i decided to put in the heaviest 14.5gram hammer
and still nothing- i kept cranking the micro 1.5 to the max but my fps would not drop but i was getting only 800fps..
so to finally get the damn power wheel to overcome the pressure i shimmied the spring with 3 washers!
and still nothing..
so at this point i thought there is nothing else to put in but i kept thinking about my transfer port selector- that maybe it is not right put in..
and sure enough i took out the barrel and the last retaining screw- the biggest one closest to magazine and shined some light on my transfer port wheel to see if its open correctly
and sure enough it wasn't opened right- it got twisted and in the highest selection almost half the port hole was covered with the other part that lest the selector turn on it..
now i got the hole right- it got a lot bigger so i knew i am on to something
put everything together and went for it..
and nothing big came as i expect it to come- i managed only 850fps with the 45gr jsb..
so- after figuring out that the transfer port was not opened all the way, after putting in a stronger spring and the heaviest hammer, after shimming the damn spring with 3 washers and cranking the pW to max i managed to get around 850fps with 45gr or 820fps with H&N 50gr slugs which made around 75fpe or 101j..
i know it is a lot better then the 770fps i was getting last time but i was sure i would get over 900fps with all that added stuff and the shimms and not only 850fps..
i do not know what else to do besides putting that pellet probe still but that's it- i don't have a plan any more..
now with the shimms i can get the fps to drop lets say on 130bar reg when i go to maybe like position 15 on the pw but as i go next to 135-137bar and the speed drops- i add on the power wheel but still reach only 850ish fps..
then i go to 150bar and put in more hammer spring tension but still end up with only 850fps...
so the 850fps seems to be my limit but others are getting 950fps out of theirs 30cal dreamlines..
so i don't know what else to do..
i might check that seat valve when the new one comes in but till then i have no more clues..
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