MINI REVIEW: Huma Mod 40 Avalanche Moderator (Problem Solved?)

[Air King]

Well. If you’re shooting 2” groups at 35yds that would probably be 4” groups at 70..which doesn’t work for my use..shooting ground squirrels out to 150yds..but if you’re OK with that I’m not going to argue with you.

Not to derail the thread but because you asked..
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If I’m not mistaken, the orange circles are 3”. Distance was 37yds. Wind right to left but not steady. The airgun used was an Edgun R5 Standard (short 18” barrel). Tuned to shoot the JSBs at 895..ball park 78ish FPE. The low shots were probably me not maintaining proper hold..too consistent in location to blame the pellets as flyers. The RTI P1s I currently have shoot this well or better..and have used the Mod40.

Just to be clear, what I said about 2" groups was about the Sig. Now as for the Avenger, compared to what you've shown, it's not bad for someone wearing a blindfold, because that's what it looks like to me. So maybe the low shots were because you opened your eyes?

 

[SpreadLead]

Calm down fellers, someone is bound to come in with single hole groups now. ... We know that sig aint a laser, that's not its purpose.

 

[Joedirt199]

All 5 of my guns wear a Huma 30 2 or 3 section. No problems with accuracy on any of them and super quiet.

 

[charlie99]

I was able to get some felt sheets from a craft store (Joann in my case) in the kids section. They had several different colors and hardness/stiffness. The ones I got are about the same stiffness as used in the original huma moderators. I used some of it inside the shroud of the Pinty rifle with all those stupid holes drilled in them. It made it quite a bit better in my opinion.

 

[Air King]

I wrapped the inserts in felt a certain way, as 12" strips the width of the oblong holes and secured with a single large diameter o-ring on each wrap, so that's two per insert. The Sig runs as best as can be expected I think, while the Avenger is super quiet and super accurate, with no effect on the POI it would appear.

The felt is wrapped clockwise on one side then counterclockwise on the other, this pattern is repeated on all the inserts. Then the spines of the inserts are all aligned in the same direction, done by peering in the holes of the cans and lining them up and closing them.

 

[Air King]

I was able to get some felt sheets from a craft store (Joann in my case) in the kids section. They had several different colors and hardness/stiffness. The ones I got are about the same stiffness as used in the original huma moderators. I used some of it inside the shroud of the Pinty rifle with all those stupid holes drilled in them. It made it quite a bit better in my opinion.

Got mine at Walmart in the craft supply area at .32 a sheet, I got a few sheets but it took only one sheet for the task.

 

[Air King]

All 5 of my guns wear a Huma 30 2 or 3 section. No problems with accuracy on any of them and super quiet.

Is that the old style with kevlar inserts or the new Avalanche with the plastic inserts?

With the felt, my Avalanche now performs very well. The only thing left scientifically is to test the airguns unmodded vs. the Avalanche, which I can't do outside of the range because of noise.

 

[Joedirt199]

I think one of them is the new insert but the other 4 are the old style. I leave the felt in the first chamber and the rest empty. Not even using the plastic insert in the new one.