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Discussion Starter · #1 ·
I know that people say the hop up is the most crucial part to accuracy, more so than a TBB, but is a $80+ PDI chamber really worth it? Of course I'm looking o get my Snow Wolf M24 shooting as far/accurately as possible, but I've been reading about people saying the PDI chamber is more hassle than it's worth, if you can even get it in the right adjustment for your gun. Need some input! Thanks!
 

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Discussion Starter · #3 ·
I could understand why thatmight be so but im just scared about drilling into the outer barrel. Lol i have little handy-man experience but i may try it eventually
 

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I've never used the pdi chamber personally, but I've seen people fiddle with it and try to modify it and it seems more trouble than it's worth. The stock hop chamber, even though it's pot metal, it is much simpler than the pdi chamber.

With the TDC mod, even if you do screw up drilling the outer barrel, which is very hard to mess up, it won't do anything to your gun. It'll just be a cosmetic thing if you don't use the hole. If you really want you can put some j-b weld putty over it and sand it smooth.

The screw with the TDC mod can also go as far in or out as you like, so your only limit for how much hop you apply is when your bb gets stuck. People do the TDC mod even with the pdi chamber, so the only advantage to it is the ability to use AEG barrels (I think).
 

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PDI were made to drop into a real TM with little or no fitting. You have a clone so it may require fitting with any upgrades you choose.

I have done the TDC to all my snipers and it is a big improvement and FREE.

If you are afraid of drilling and fitting upgrade parts which may mean grinding or filing, then best leave it stock. You will also need tuning once upgrades are done.
 

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In all honesty, the only thing that makes the PDI chamber an absolute PITA to use is the fact that it uses 2 hop up arms. As good as the idea sounds conceptually, in real life it is absolutely horrifyingly difficult to adjust.

You could always just get the PDI chamber and then replace the 2 hop up arms with a large, single hop up arm. Cheese Man has single arms up for the L96 PDI chamber on his Shapeways site, but I'm not quite sure if they'll fit in the Snow Wolf PDI chamber. I'd imagine they should, since the Snow Wolf chamber is based off of the M24 chamber, and all of those APS-ish chambers are very similar.
 

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Discussion Starter · #8 ·
I guess i'll try the TDC mod when i have the time then. But one thing i was wondering was what kind of bucking does the Jav/Snow Wolf M24 accept? Last night I modified a systema bucking (AEG) to fit the chamber (accepts APS2 barrels so I'm guessing APS2 bucking?) but I have yet to test out it's consistency.
 

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If you have the time and patients to work with the PDI chamber, then go with it as it is a great part... But if you want something that isn't going to make you want to destroy your rifle.... just R-hop the rifle and go from there.
 

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It really isn't that hard to do man, just get a small needle file and take your time. The file will cost around $5 or so, and you will be able to use it for other projects as well for your rifle.
 

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I have the original PDI hop up chamber for the VSR-10. (Bore up edition) It is a fine piece of equipment. I am happy with it. But as everyone had said here, it is a pain to tune. Requires extremely fine tuning and most likely a little custom work to get your nub to sit correctly. I run an SCS nub that is positioned to the center with heavy gauge foam. Very tedious work. I also have a small custom spring that I salvaged off of a pen positioned between the arms and the inside of the outer barrel. This is to apply extra pressure because the two o-rings are not enough to raise heavy bbs. Then the pressure can be adjusted finely with the grub screws on the bottom. Very complex for a hop up haha. But it has been worth my while. The PDI chamber does apply pressure more evenly than a stock TM Chamber in my opinion because there is no "flex" with the arms. The pressure is applied from the top downward, like the TDC mod :) hope it helped some! Good luck!
 

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You could just go with the R-hop Z kit. It's like... $20 more, but it takes out all the work for you.
You will still probably have to sand it down. The only work it takes out is trimming the legs, but most of the time you don't need to do that anyway. The z-kit also only gives you one or two useable patches out of the three. If the middle one fits for example, the smaller one is already out of the picture because you can't add material to a leg so it will be too short.

I suggest you go with the normal kit. It will also give you more experience in fitting them.
 

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If you are not ready to do the TDC mod, the maybe a better bucking, an aluminum hop up lever and better inner barrel. Those are drop in upgrades that takes minutes.

But since you will be taking the gun apart and tearing down the hop unit for upgrades, the TDC mod now only takes minutes for a drill and tap.
 

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Discussion Starter · #17 ·
On that note, I should probably order my replacement barrel and do the Rhop on that instead of on the stock barrel huh? I am willing to do the TDC mod, just gotta find the time and take a trip to Home Depot to get some 400 grit sandpaper. For now i'm just trying to familiarize myself with the whole process&steps to get it right so that when the time comes I wont be sitting there on ny butt wondering what to do next. Lol
 

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Why wouldn't you be able to install the r-hop on the stock barrel? If you have brasso or some other abrasive polish you can polish the inside of your stock barrel to get a really good quality bore.

Large hardware stores like home depot probably won't have sandpaper over 280 grit, and even if they did it is going to be over priced. You'd be better off going to an automotive store. They probably have the really fine sandpaper for polishing the finish on cars. If you can't find it there I got mine from amazon.
 

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Discussion Starter · #20 ·
I could install it on the stock but i was thinking that if i upgrade my barrel, there may (or may not) be a small difference in the window although it is still an APS2 cut. Maybe i'm just being paranoid though. Lol and also, when i was cleaning/inspecting my barrel, i did see one or two sort of like "cuts" or deep scratches in the barrel, which further leads me to believe i did not receive a new unit. I am willing to try the polish and see if it changes anything but i do plan on replacing the barrel in the future.

A quick google search brought me to this http://m.homedepot.com/Paint-Paint-...splay?catalogId=10053&langId=-1&storeId=10051

Seems that my home depot does have it in stock so i might drop by today!
 
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