Guess i went a tad overboard on my 25cal one. She´s handing the numbers though and rather accurate at that, still on the stock barrel.
But has she ever had the full 9 thrown at her..
Big things.. little things.
Like that i sawed off like an inch on the bottom of the stock, made it come out looking way more like a "normal" rifle. The god awful plastic goo they´re draped in - off. Nowadays linseed only.
Had about forgotten about this piece until i saw this thread, time to get her out of the vault again me thinks.
Anyways. Yes. As you can see an add on plenum. On 140cc´s if memory serves and tossing 34´s and up she easily surpass 125J and then some.
But there´s many many "flaws" to the M-16 that is to be corrected.
For instance.
Lacks seal between barrel and breech piece on the barrel. There´s simply nothing there, apart from the threads in case.
Lacks any and all seals as far as the shroud, and the stock diffusor in turn.. don´t even get me started. IMO the entire shroud setup needs to be redesigned.
In turn the trigger group, as mentioned above...
Needs a fresh set of springs to balance the thing off way better. Adjuster screw in turn, a drop of superglue. No, not Loctite. Superglue, as that stuff will let you work the screw and still keep it in where it´s supposed to be. See, one major malfunction here is that the adjuster screw works itself lose... Hence the superglue.
But yes. Albeit not a "match trigger" exactly it can be greatly improved upon no doubt.
Porting then. For a regulated 25cal this of course entails opening the transfers, exhaust port and so on up. However.. there´s an issue inherent...
As you go much past 6mm the transfer port will break into the ridge that supports the larger sealing o-ring on the block. This is of course an issue as it´ll let the o-ring collapse and rupture.
So i did the only reasonable thing to remedy and that was to turn a thin shim out of really tough steel.. which i in essence got away with by just compressing the valve assembly harder against said o-ring on assembly.
Might be worth of note though for those so inclined.
The stock reg however has handed me rather specific zero issues. Sure. Took it apart and polished the seat n piston for it and in turn the belleville washers but that being done... works a million bux in my case.
To be noted here though is that that job.. it´s been a while. Point being that where i´m at i could really use a longer barrel for it and in doing so i´d really love a longer Snowpeak one. But.. as we´re all aware they´re about as scarce as hens teeth so..
But yeah. All said with a little effort n elbow grease put in they´re lovely rifles. Will most certainly reposition the plenum tho. Yes, i make my own such and yes i know what i´m doing.
Run an entire machine shop, make them out of seamless high pressure steel tubing..