Tuning Help for tune dreamline

[Morbech]

Hi.. From Denmark

I have a problem with my dreamline...

I set the reg pressure to 135

The power wheel is about18 mm 



FIlling the rifle to 220 bar and then go shooting the first shots will be a little spread on 25 meters.. mayby 1 cm high of aiming point.. then they will start crawling to mayby the left and the they will settle, and I can shoot hole in hole..

can anyone say what that could mean? reg pressure to low? hammerwheel to loosen?

Thanks

Frank

Look at the lower section.. Hammerwheel from max to the left, to minimum to the right..

Numbers under, are the spread, and the average speed.

 

[Morbech]

But cant really use the statistic, because some of the shots have been fired when the rifle had settle in velocity, and some of the shots have been fired when just filled up..



It is like there is to much power for those first 5 shots and then the rifle settle.. How to fix that?? regulator pressure or hammerwheel?

 

[wimpanzee]

It seems to me you might have too much hammer for that reg pressure.

My .25 dreamline is set to 135bar (with power plenum) and I get consistent shots from 230bar all the way to 130. I am not sure the precise measurement of my power adjuster or hammer adjuster, but i it's set to take almost all the slack out of the little rectangle bit that is next to the power wheel. At PW4 I get 890fps with kings, and at PW1 I get about 800fps. It doesn't seem like your low end goes down far enough, so I think you have too much hammer spring.

 

[Morbech]

so loosen it more? 

if you look at the chard you can see the numbers for minimum, 1,2.. If I shoot it at number 2 it is the same.. Did that today.. And I would like to hit from 850 to 910 in velocity.. You think that can be possible?

If I shoot it next to my ear, I can hear a little whistle in the barrel, air i think.. Is that normal or is it because there is to much air from the reg..