A.E.A. the gun of the moment ?

[sicumj]

     I am seriously thinking about a bottle regulator.  Altaros makes one and you can add an additional plenum.  Looks like the clearance is too tight for the Sumo LDC I have on it.   Will have to go to a smaller diameter LDC. 

[Mr.P]

Me too - not sure what volume plenum you’d need to launch a .357 or .45 with authority through. 

I will someday combine my airforce tank offset adapter (talon tunes item that can lower the tank, allowing for fatter bottles in this case) and an altaros reg with an extra plenum attachment.  If I don’t need that angle adjuster it may not use it but it adds quite a bit more air to the Plenum. The bottle in the picture is just a random .5L 3000 psi aluminum bottle but I’m going to get something different.  Any leads on a budget carbon fiber bottle? I don’t understand why these gun CF bottles cost as much as a guppy tank + full assembly.

My guess is that it will be heavy and under powered but it’s worth a try. I’ll get to it as soon as I get over being happy that my Max is finally shooting well after many weeks of messing around.

[Spacebus]

Me too - not sure what volume plenum you’d need to launch a .357 or .45 with authority through. 

I will someday combine my airforce tank offset adapter (talon tunes item that can lower the tank, allowing for fatter bottles in this case) and an altaros reg with an extra plenum attachment.  If I don’t need that angle adjuster it may not use it but it adds quite a bit more air to the Plenum. The bottle in the picture is just a random .5L 3000 psi aluminum bottle but I’m going to get something different.  Any leads on a budget carbon fiber bottle? I don’t understand why these gun CF bottles cost as much as a guppy tank + full assembly.

My guess is that it will be heavy and under powered but it’s worth a try. I’ll get to it as soon as I get over being happy that my Max is finally shooting well after many weeks of messing around.

Bob may be able to help you out with figuring out the plenum volume for your desired power.

[Wayne52]

Filling my AEA HP Max 457 to 270 bar is ideal for me because you'll get six pretty accurate shots right in that area of pressure.  Filling them to 4500psi you'll get a drop after every shot and not so much when filling to 270bar.  Even at 270 bar these guns have substantial big game killing power.

[Mr.P]

I haven’t been topping off either just so as not to kill my compressor.

For those interested, I actually got 162.5 fpe from a 125 gr NSA slug with the shortened/ stiffened spring, and filled to a little over 4100 psi (who knows - none of my gauges agree).

On my particular gun, I am getting about 9-10 extra fpe and also less air usage with the changed spring.

yesterday I ordered a stiffer (I hope) hammer spring: 8mm OD spring with 1.2 mm wire (20% thicker than stock) which someone helpful here mentioned is about the thickest wire that will fit between the spring guide and the walls.

[Captain Paul]

That's why If u remove all the semi auto stuff and make it a bolt action, u get more power. Bcuz air isn't wasted pushing the pellet probe out of the barrel. The probe is locked in.

That might have been the case with your rifle, but wasn't the case with the HP Varmint I bought from The Pellet Shop a couple months ago.  That rifle had the hole in the receiver for the plunger that cycles the bolt and it puffed air with every shot.  So it was definitely loosing air and Bin Yan swore that it was not a problem with the rifle.

Not trying to argue, just stating my experience and what the dealer told me.  In any event, that plus several other reasons caused me to send it back and buy a Challenger Pro instead.

Here's the video I sent to Bin to show him what the rifle was doing:

[Get some mustard]

 
Well anyway glad you got that sorted out...

Has anyone tried just a ronin on a .45 or .50? Does it quit it down any? Might buy one also
 thinking of buying just the ronin extendeder and making my own baffles. 185 vs $60

[magicmatt]

That is the same ping sound I get from my .25 hp ss love the gun! Does anyone have any suggestions on how to quiet that noise my neighbors can hear it from 60 yards away?

[Get some mustard]

Bison workshop makes a depinger for the challenger tubes. I think the ss tube is wider. Ppl have had success with a baby bottle brush. Just make sure to look on yt how to install it.

[Mr.P]

Does anyone know the specifications for the breech o-ring for the 357 HP max?

Thank you

[Wayne52]

Marco I've been searching trying to find out o ring sizes for any of the AEA airguns and none of any of the dealers seem to have any kind of o ring specs for any of the guns.  The way that I did find out the breech o ring size for my 25 cal carbine when I needed one was to measure the old one and I was able to to dig through my o rings for a replacement.  AEA needs to refine their support for all the guns that they're selling.  I could take my .357 Challenger apart to find the size of the o ring that you need but doing that would probably destroy the o ring that I have in it.   Have you tried calling Bin at the pellet shop to try finding out the size of it?   

[sicumj]

     I have a Sumo on my 25 HP.  Loudest noise after that was the Ping.  Bought a bottle brush 2.5".  Installed it inside the carbon fiber bottle and most noise went away.  The Ping is gone and the action isn't very noisy.  I'm sold on using a brush for a depinger, shooting at varmints now and many times they are not spooked. 

Jim

[Spacebus]

 
Well anyway glad you got that sorted out...

Has anyone tried just a ronin on a .45 or .50? Does it quit it down any? Might buy one also
 thinking of buying just the ronin extendeder and making my own baffles. 185 vs $60

I don't think a Ronin will do much for you.

[Mr.P]

For anyone curious, I slugged the 357 barrel. At its widest the slug is about 9.03- 9.04mm and where it was cut in by the rifling it’s around 8.85-8.9 mm

Does anyone following this thread know how I use those numbers to size my projectiles. My guess is you’d want your bullets to be a hair thicker than that larger number so there’s some solid contact with the barrel?

[Spacebus]

For anyone curious, I slugged the 357 barrel. At its widest the slug is about 9.03- 9.04mm and where it was cut in by the rifling it’s around 8.85-8.9 mm

Does anyone following this thread know how I use those numbers to size my projectiles. My guess is you’d want your bullets to be a hair thicker than that larger number so there’s some solid contact with the barrel?

Sounds like the grooves are .356 and the lands are around .350". I suggest getting an NOE sizing kit and a few different die sizes, maybe .355, .356, and .357. It also sounds like the NOE .35 cal pellet mold would fit very well, and those don't need sizing. There will be some trial and error to figuring out what size ammo will be the "best".

[Mr.P]

Thanks for the info.  I have a .357 sizing bushing and a mold cut to .358, maybe another bushing or two would be a good idea!

I’m not sure how much to trust my measurements of the soft lead with the hard calipers but I did my best.  My consistency in re-measuring wasn’t great.

Also managed to find an oring that fits the breech. I’m not sure it’s the same as the original one.  Seems like 11 mm is the outer diameter needed. I tried 11 x 1.5. This works but doesn’t feel like it’s quite as tight as the stock although I’m just going based on memory.  It also seems to leak a little bit more air although powers still pretty good.

11x2 was too big. Even though it popped in the gap, it was too far by just a hair and I couldn’t quite close the breech, so I sanded down the outer edged and polished the inner edge and now I have a very snug fit, tighter than the stock oring which I think is a good thing. 

I also ordered a replacement from Bin Tac - I didn’t get an answer as to what the dimensions were but he said he had one on hand and would ship it to me.

[Spacebus]

Thanks for the info.  I have a .357 sizing bushing and a mold cut to .358, maybe another bushing or two would be a good idea!

I’m not sure how much to trust my measurements of the soft lead with the hard calipers but I did my best.  My consistency in re-measuring wasn’t great.

Also managed to find an oring that fits the breech. I’m not sure it’s the same as the original one.  Seems like 11 mm is the outer diameter needed. I tried 11 x 1.5. This works but doesn’t feel like it’s quite as tight as the stock although I’m just going based on memory.  It also seems to leak a little bit more air although powers still pretty good.

11x2 was too big. Even though it popped in the gap, it was too far by just a hair and I couldn’t quite close the breech, so I sanded down the outer edged and polished the inner edge and now I have a very snug fit, tighter than the stock oring which I think is a good thing. 

I also ordered a replacement from Bin Tac - I didn’t get an answer as to what the dimensions were but he said he had one on hand and would ship it to me.

Yeah, it's tricky to measure the slugs. It sounds like the bore is perfect for an air gun, a bit on the small side and good for available .35 cal pellets.

[Wayne52]

When I talked with Mike Melick on the phone this morning he said all he'll do for a bad ping is take about a 3" piece of freezer tubing, wad it up and shove it half way down the air tube, he said it's worked on everything he's tried it on.  It does make a lot of sense when you think about it because it's soft enough to make good contact and it would definitely deaden the resonance through the tube.

[Mr.P]

I see all kinds of stuff when I search for freezer tubing.  What material / dimensions are we talking about ?

Thank you I’d like to try this out.

[Wayne52]

It's the same stuff people use to make 3/8" I.D. transfer ports with.