New to me raw hm1000x

[Airgunmann]

I picked a used raw hm1000x 25 . Put on my razor hd gen 1 ffp scope . I'm shooting 34 gr jsb mk 2 with the hammer spring maxed it at 810 fps . It's before air Force took them over . I filled to 3300 and got 60 shots the gauge was at 150 bar and all 60 hit at the same point of aim . Stretched it out some today and found it is easily minute of sparrow at 70 yards

 

[Crusher]

That is a fine looking gun there.

Crusher

 

[bucketboy]

Very nice, enjoy.



Bb

 

[Airgunmann]

Thanks I will . I'm going to try to get rid of it's bark today I removed the ldc and found there aren't very many holes to let the air pass threw 

 

[Airgunmann]

Ok I wanted to ask I noticed this that the gun has a carbon fiber bottle size of it seems to be about 500 cc the bottle says it is good to 250 bar or 3600 psi can I fill to that pressure or do I have to stay at 230 bar about 3300 psi . Thanks for any help

 

[2D1C]

I fill mine to 250 bar without issues.

 

[Airgunmann]

Ok thanks should give me a few more shots to play with before refilling

 

[bucketboy]

If you have access to a lathe, turn the od of the baffle cage down to 20mm, them wrap in craft felt, this simple mod makes a big difference.



Bb

 

[Airgunmann]

I do have a lathe out in the garage. The front air stripper on the barrel has like 6 holes in it and the next 2 baffles screw together and on to the air stripper. The baffles look just like the air stripper on the barrel . They all slide in to the hollow carbon fiber tube so in the plastic 2 baffles I put in more holes in them slotted the second outer ring so air can move past it either way and I did the same to the stripper on the barrel . I was thinking of rapping them with scotch brite pads with vet wrap to hold them in place when I get to it later I'll take some pics of it and measure sound level

 

[bucketboy]

You don’t really need to put extra holes in the baffle, the high pressure air from the muzzle will easily squeeze through, it’s more difficult for the low pressure air trapped between the carbon tube and cage to get back out. Reducing the Dia of the mono block baffle, increases dead space, reduces noise. 

I have done this to a couple s .30cal and a .25, the difference is noticeable.



Bb

 

[Airgunmann]

It has a sharp bark at the shot so I'll see it should have increased the space that it can use because I slotted the baffles so the air can use the length of the ldc . Plus I'm going to wrap it with material

 

[Airgunmann]

Here is what I did so far then I'll wrap it 

 

[Airgunmann]

Wrapped with scotch brite and vet wrap and reassembled after making sure it fit some out loose

 

[bucketboy]

Wrap some felt over the barrel near the shroud support, it helps to stop the air bouncing about.



Bb

 

[Airgunmann]

I did looking for a oring for the bottle had a slight leak after I removed the bottle and stock to adjust the trigger then I'll test it see what level it's at 

 

[Airgunmann]

79.8 db in front of muzzle 2 ft and to the side about 4 ft according to the phone app indoors and no pellet 

 

[bucketboy]

It will be better with a pellet.



Bb

 

[Airgunmann]

It's 78.7 out front of the muzzle and 76.5 with the mag in and measuring right in line with the action I'm thinking it is definitely better than it was stock 

 

[bucketboy]

Nice job, to be fair, it would be hard to make a less effective mod that the ones RAW make.



Bb

 

[Airgunmann]

Yeah your correct thanks though . If I had the room I'd do a full shroud but bottle is to close to the barrel