Sorry guys, but I have another M3 question

[johnp]

I've been shooting Nielsen 47.2gr. slugs
My shop didn't have any 47.2's in stock so I went to 49.5. Now when I shoot it I can hear the plenum filling up for about a 1/2 second. It didn't do that before. I know it's a small adjustment but I'm new at this adjustable stuff, can someone direct me on where to start? Thanks in advance.

 

[Er1ckNL]

1st and 2nd reg pressures are at? What FPS are you shooting those?

It's quite normal with an M3 with three regs. Hearing the first regulator filling the plenum at the second reg is normal in my opinion. Actually when I lose the sound, I check my regulators if I'm not shooting below pressure. Quite satisfying hearing the little gas sound.

 

[johnp]

1st and 2nd reg pressures are at? What FPS are you shooting those?

It's quite normal with an M3 with three regs. Hearing the first regulator filling the plenum at the second reg is normal in my opinion. Actually when I lose the sound, I check my regulators if I'm not shooting below pressure. Quite satisfying hearing the little gas sound.

 

[johnp]

Here are my settings

 

[Skidoo165]

Delete the first reg, fills much faster, I'd just bump it 5 bars, the rear reg is good for up to 175 bar, so u have plenty of wiggle room

 

[2L8]

I've been shooting Nielsen 47.2gr. slugs
My shop didn't have any 47.2's in stock so I went to 49.5. Now when I shoot it I can hear the plenum filling up for about a 1/2 second. It didn't do that before. I know it's a small adjustment but I'm new at this adjustable stuff, can someone direct me on where to start? Thanks in advance.

I see no issue here with your 2 reg's ( Not sure where the 3rd one would be...)
Chrony it where it is with the 49.5's and report back with data and accuracy, then we can talk.

Patrick