I contacted Tom about the big difference in the spring length. He said the wire and spring diameter compensate for the spring length. As far as I’m concerned, it works. The factory spring started to take the shape of a banana and is a POS, IMO.

I haven’t been here in awhile. Was wondering if anyone has any firsthand knowledge or experience with the MAX 1? It looked to be a pretty nice set up with some good stats.

Flashpup57 said:

Going off conversation! I was just wondering if you happen to know a girl from Chatsworth hills I would believe her name was Lisa Desenso with some brothers one was Chris Grant that I knew very well if the 1972 is your birthday that puts you around her age!?

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Sounds familiar. I went to van nuys high if that makes a difference.

Dstrac said:

Yes exactly, regulated pcps are more consistent from shot to shot, the Fps stays even, and the shots hit the same spot one after another. This is even more so the case with dual regulator guns. I have several non regulated guns, several regulated, and one with dual regulators. Non regulated guns perform best when tethered to a tank for shot to shot consistency, you get a ton of shots at similar fps

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Thats the path I have taken with a modified .308 Texan and 357 challenger both non regulated pcps. Tethered not only gives a big number of shots you aren't going to be limited on power like pcps with built in regulated pcps . I target shoot and hunt, just can't stalk hunt.

Around my place (Greater Toronto Area) I have no airgun competition places in a big radius, but I have gun ranges and gun clubs at every second corner.
Last summer I got into f-class with my W308, and after some tinkering I got myself a ski-bipod from Rempel.
Not so shortly after I figure visiting these long ranges not really a convenient in timing, these need a full day job packing dragging a full trunk of equipment and things like that.
So me back to BR just because of my own timing and convenience.
So, I have this ski rest with a PQP rear in combination. It works decent well on bench top, with dual purposing between the powderburner and my scuba guns.
But I would really like to modify it to a joystick instead of turning knobs.
I have not seen parts only that with minimum modifications I could re-use, as much I see I would need to design some of my own parts for it.
I promised myself stop just buying - and piling up - always new...now its time to use and modify whatever I already have in my pockets.

Yes posibly an oversight, or as a mate of mine just pointed out, mayby down to me not screwing on the crown screw tight enough in the first place.... ? and leaving a little play for the lead to get through,,, have ordered another hope its a one off or things will get expensive

I got that one but still not solving my problem.

the gaskets look the same but it's still not sealing

I just came across this modified RWS 850. It has an HPA conversion done and looks to have a 13ci Aluminium bottle in it. I’ve never seen one with a stock like this one has. Anyone recognize it? I’ve never had an 850 , would a carbon fibre bottle fit ?

This might be an option as I plan on modding whatever I get anyway.

Simplest answer for me is two sandbags. Shooting a powder burner on a bench it’s steady enough to work well at 1000 yards. Cheap too.

Rick H.

The setting should remain the same for a gun of the same category/fps threshold, otherwise you're just adjusting the gain for the individual gun, which seems incorrect to me, but I have tried with little effect.

6gun said:

Good luck. They're known as reflex supressors and I couldn't find one (Hein fromman) for my 700mm tensioned barrel, so I made one and it worked but not well enough for me. The donny fly yokozuna with quick disconnect was the best option.

Silence is more important than shortness to me, but not at the expense of balance. I was running the carbon harmonic shroud modded to fit over a tensioner with a ronin. The yokozuna is lighter, shorter and better. Highly recommend those new design mods.

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Thank you. I look at the DonnyFLs. They seem to be a good option, in case I don't find an over the barrel mod.

thanks! it’s pretty sweet sitting at 25fpe. total build cost is under $500 with parts i had on hand and building the moderator

Got the Air Tac working pretty good with the H&N Field Target Trophy 8.64 today This old $40 out the door Air Tac in .177 was a bit of a challenge , but after a little work , and cleaning got some dime size groups after all.

I know the rules say I cant ask about building a moderator. I plan on printing and selling some airgun moderators in the future but I need to find a special adapter and I cant find what I need. Male 3/4x16 to female 1/2x20. Any help would be appreciated.

I was told once that if you’ve thought about something, chances are that someone has thought of the same thing, so sorry if it’s already been discussed. I own an FX panthera 700 in .30. I bought it last year, and I occasionally bring it out of its box, and handle it. Enough time had made me realize that this instrument could benefit from major modifications, and I’m wondering if they already exist. The first one I thought of is incorporating a sling mount from the pistol grip that travels up conforming to the instrument and positioning itself right next to the dial. Maye it could be sandwiched between the pistol grip and receiver like a washer, and have a thumb rest on the other side, maybe a cover to protect it the knob from sling friction? The second is the hand guard. It would be nice to have a custom hand guard that accommodates for whatever scope you use. Is there anyone out there that’s developed a shroud for the barrel that’s ridged as all hell. It would be cool as hell if a hand guard existed that was like that with a spur at a certain distance from the optic that ends right at the bottom of the optic for your thumb to mold into when you’re caring the instrument in both hands with the barrel facing down. Something maybe with a little recess. At the base of the spur so that both hands of a nice purchase on the instrument. If they designed that rail at the point with the three screw holes, and machined a piece that used that point, and went up and wrapped around the barrel, maybe you could sandwhich a titanium tube and combine it with interlocking carbon fiber for a handguard. Maybe engineer the carbon fiber hand guard to interlock with each other so they slide in? You could add another contact point on the side of the rail, and have both sling mounts inlune with each other? Is there anything like this? Curious to know.

I got tired of the shift in POI as pressure dropped so I regulate my AirForce rifles and use plenums. Either a Huben Power MAX-ATH (50cc plenum) or my home built plenum.

Right top to bottom
Top hat
M18 extension (tube diameter issue)
20 CM Shan Bao 3000 psi tube (M28 to M18 adapter included with tube)
Huben Power regulator lower 1/2 (just unscrews to M28 that screws into tube)
Huben Power U adapter
Trajectron angled adapter.
Bottle up to 1.6L (fat). 1.1L shown.

The 20cm tube and the rest after the regulator is a 150cc plenum. I can run my .25 condor at 1800psi and get almost 900fps. And shoot several hundred rounds at that pressure with a 1.1L.

.177 you only need a very small plenum. Huben Power Dream or MAX-ATH are plenty (25cc and 50cc plenum) but they add a bit more LOP than the U adapter setup depending on bottle used.

AlanMcD​

Alan!

If anyone benefits from this thread, all the better for us Box owners.

I will continue to locate a 'standard' that can be used for every iteration of the Boxes and add it to my spreadsheet for any future parts/fixes.
It is pretty complete already, but these sorts of parts are tough to discover without manufacture, or part names.

In reality, the only parts that I am positive are not an off-the-shelf item, but custom parts, are in the spreadsheet already, even the Yor-Lok that rcs9250 recommended.

BTW, I have ordered one of each size Yor-Lok fittings from McMaster-Carr to see if they work well enough for Box users, and will of course, report back here.

Thank you for your thoughts.

Mike

I was told once that if you’ve thought about something, chances are that someone has thought of the same thing, so sorry if it’s already been discussed. I own an FX panthera 700 in .30. I bought it last year, and I occasionally bring it out of its box, and handle it. Enough time had made me realize that this instrument could benefit from major modifications, and I’m wondering if they already exist. The first one I thought of is incorporating a sling mount from the pistol grip that travels up conforming to the instrument and positioning itself right next to the dial. Maye it could be sandwiched between the pistol grip and receiver like a washer, and have a thumb rest on the other side, maybe a cover to protect it the knob from sling friction? The second is the hand guard. It would be nice to have a custom hand guard that accommodates for whatever scope you use. Is there anyone out there that’s developed a shroud for the barrel that’s ridged as all hell. It would be cool as hell if a hand guard existed that was like that with a spur at a certain distance from the optic that ends right at the bottom of the optic for your thumb to mold into when you’re caring the instrument in both hands with the barrel facing down. Something maybe with a little recess. At the base of the spur so that both hands of a nice purchase on the instrument. If they designed that rail at the point with the three screw holes, and machined a piece that used that point, and went up and wrapped around the barrel, maybe you could sandwhich a titanium tube and combine it with interlocking carbon fiber for a handguard. Maybe engineer the carbon fiber hand guard to interlock with each other so they slide in? You could add another contact point on the side of the rail, and have both sling mounts inlune with each other? Is there anything like this? Curious to know.

That guy is awesome and speaks my language!

Bramezy said:

Yes on all my other guns and Mrods they do lol. I like it as is without the spring. Works why mess with it. Just glad my amazing accuracy is back. I love this gun. Accurate and a pleasure to shoot. Can’t make another one like it though as AGR doesn’t have the light regulated SSGs!

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They are somewhat back as the factory Ch2021 setup. I need to inventory these for customers because they’re inside the tube. Not to mention for JROTC and 4H groups.
The only difference is my binding bolt set up was different. Shorter actually. So what one does with it outside of putting it on a CH 2021 is on the customer.

Jfk742 said:

What are you looking/listening for in regards to HS tension screw adjustment? Do i look for a plateau in speed then 1/4 turn when the fps flattens? There seems to be a lot of nuance with the balanced valve. Are there different spring’s that i can get? It would appear to my untrained eye that I’m within the adjustment range given my experience with this gun so far.

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Yeah basically plateau in terms of fully open valve, then another 1/4 to be certain that it opens fully even with a bit creep. “Plateau” means the point where a 1/4 turn only gives you 2-3 or maybe 5 fps more. That’s not because you still can open the valve more, those tiny increases are because you smash the valve open with (too much imho) force.

I don't have as much experience as most of the posters here, but I do read a lot. I have been lurking this site for years. I seldom see anyone post about problems they are having with their Brocock. They just work. Good luck!

Not ...

Sorry to read about your airgun troubles. Owning a PCP means learning to or paying for O-ring replacement. The O-rings withing the Avenger are not the best coming from the factory. Chances are that several of the internal seals have gotten hard, cracked or just plain failed. Captain O-ring has kits available ( https://www.captainoring.com/store/p298/AVAveng1xBlk.html) and these kits are great so long as you can correctly match the kit seals to those within the gun. Doing a quick search on YouTube for your particular gun should render some videos that will walk you through the process of replacing O-rings throughout the rifle. Good luck

Hi HM !

I use an old trick , the 1/4 headset Jack for skirts .