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And as far as porting goes has anyone posted defined speed findings on stock vs thimble port ? Well I have tested a gun today with a couple combinations ..25 caliber current tune nothing changed over the period of testing . Thimble…. Stock 914 fps/ ported to 4.5 919 fps .. not enough to...

The plenums have been a pretty good success I’ve played with downsizing them by placing lead sinkers in them to decrease air volume and I think we hit the nail on the head … decreased sized plenums are not the way to go, I would be curious to try some bigger ones but I think the small through...

All preorder plenums have shipped ! I still have a few extras and many other goodies that are turning this rifle into a powerhouse. Or a mild mannered efficient pellet shooter .

I’m sorry for the confusion the poppet and port piece are just in the works and testing . I’m sure the receiver is going to need some machining to make it more efficiently sized if possible .It’s pretty limited. But not for long . I’ll try to get some ports made up and tested with the next few...

All mods are available currently made to order Except for the plenums they are on the list to be machined .

First pic was plenum design and prototyping . Second pics are the swing out single shot mags that allow longer slugs to be used .. I also have some 7 shot mags I drew up awile ago that also allow long slugs to feed . Tried the aftermarket ones and they seam gears more towards pellet lengths ...

Alien airguns (Wayne Reid) is the go to avanger barrel maker .. if you want anything over 24” you’re going to need to go with a tj barrel . But from experience the modded Ava can reach 100 ft lbs from a 24” lothar walther barrel . He is a busy guy with airgun products expect a little wait .. but...

Barra plenum designer guy here .. just thought I’d chime in my observations with the 250z .. the .25 I have shoots literally ragged holes at 100 and has been able to shoot sub moa out to 200 on a calm day . I almost always pick slugs that are on the heavier side liking 40-44.5 grain range ...