Shoot over the chrony and see what velocity they start to bunch up at, and then let me help you find the psi that will match that velocity.

Regards,
Jim

I can send you a delrin replacement. No worries.

Just need the dimensins and I’ll turn one up.

Jim

LOVE IT

Jim

You know my wife has the hots for you. Quit teasing her.

As soon as she hears that she has another suitor with more experience, and girth, than me, she’ll be knocking on the door. She loves to fish, too, so those pictures of you in your Speedos and catfish have her bouncing off the walls. Please quit sending them to her cell phone.

I…Read more

Jim here. Hoot was nice enough to send me his P-rod so I could make these things for him. Now I’m making them in bunches for everyone else.

The P-rod to Tippman 98 stock adapter is $35.
The P-rod to LDC adapter is $15.
I can make the LDC adapter male, female, or finished end with a hole for the pellet. M/F are 1/2″ long. Finished…Read more

Too bad he shamed my favorite rifle cartridge.

Jim

Thanks for posting these pictures.

Someone did get my cc number and other info and tried to buy a bunch of stuff online. Fortunately we caught it in time and no money was actually lost (yet).

I’ve got a few things to do but this will not hold me up doing the parts.

Regards,
Jim

Tagdagger certainly had my blessing to begin producing his own. I only started making them when people came to me and said MetalHead was out and not going to have any anytime soon. It is a lot more work than the $10 price tag considering the bolts alone are about $3 each. I basically considered them a service to the community as…Read more

😀 😀

Jim

Pab,

Centering the reticle is by far the simplest way to do exactly that, get it mounted properly.

How else do you know if the scope…Read more

but I think it would be easier on everyone if you just Googled (or Binged or whatever-ed) “mounting a rifle scope properly”.

I think you’ll find that centering the reticle is one of the steps that a riflesmith will use.

Regards,
Jim

the trouble in his example is corrected by having the bore accurately located below the scope and the crosshairs vertical.

Hey Voltar,

I contend that the easiest way to locate the bore accurately below the scope and crosshairs is to center the scope before it is mounted. It’s way easier to shim…Read more

Considering the use of airguns is generally considered a precision sport, and that we use them at ranges from under 10 yards to over 100 yds, the potential for windage errors introduced by an optic not mounted properly are immense. This is not the…Read more

Getting the crosshairs centered optically allows for the clearest, least distorted view through the scope.

The idea is to mount the scope as close to sighted-in as possible and use the clicks (hopefully only a very few) to get your windage exact. This can be done with shims or a windage adjustable…Read more

Sounds like you are ready to adjust the turrets. Just start cranking until there is only one reticle visible, ie, they are aligned.

Jim

Keep up the good work, baz. As I mentioned, not here to start anything. That last picture is very enlightening, thanks for sharing.

Regards,

Jim

Not here to bash or start a fight, but if you look at the first few pictures, they are a little different. Not the same as baz is measuring. I just imported the pict into my CAD program and scaled using the diameter of the bottle and the diameter of the valve. It’s about 2.5″ long.(the one mounted on the rifle).

Regards,
Jim

It’s great you were able to make them shorter. The black one above looks longer. I did make a mistake (forgive me) and it looks to be 2.5″ or so, not 2.9″

Jim

I promise to pay better attention next time.

Jim

Jim

Silicone is needed on any of the cast polyurethane o-rings in the regulator on the E-TaCREG. I always add some when I install them, but that will not last forever. Any pure silicone is a benefit.

Adding it to the fill nipple will help keep the backcheck o-ring lubed.

However, I think it is more prudent to lube the…Read more

quote SAVAGESAM:I think M.M.s E-Tac may be as good except this one SEEMS to have a slight advantage in less added L.O.P.

Looks like this one is about 2.9″ long. The E-TaC is 2.0″ and the E-TaC shortie is 1.5″.

I considered this design for the E-TaC, but it is considerably more expensive to machine. I also preferred the…Read more

Are you guys sure the groove diameter is the same?? I thought the air rifles barrels are .221 and the .22rf is .224. Also, the lack of a choke on the .22rf barrel will not help accuracy either.

Not wanting to pee on your parade, but I’m pretty sure you won’t be happy with the results.

I may be wrong, too.

Jim

Life is indeed too short. I just got the 4500/3000 in and will let you know how it compares.

Ewoodie, E-TaCREG is machined, need to be blacked on Monday, soak for a day, and out the door. Reg is set and ready for install.

Regards,
Jim

I wanted to express my sincere appreciation for the support and business over the last 16 months since the original E-TaC was first introduced.

Sales are still strong, and I’ve gotten quite a few orders for other machining jobs as a result. To all of you who have trusted me with your projects, thank you.

My support on this forum…Read more

Standing corrected,
Jim

Why not just take the plunger out of the reg and open it up? There is nothing to be gained by opening the valve to allow air. The ports are very small and not designed for free-flow..they are actually that small to retard free-flow.

I’m assuming the end-game is to have an HPA bottle on your rifle….(if I may add) THERE’S AN…Read more

I want to thank Tedd for the opportunity to make his mounts. They were a fun and complex project that gave me a break from the E-TaCs.

I appreciate the kind words, although I wouldn’t give myself that much credit. I’m happy to be able to bring someone’s ideas/dreams to reality.

Regards,
Jim

I’ve not been able to find the tanks alone.

Jim

The E-TaCREG and reg are not rated for 4500psi. If you try it, it will be at your own risk of life and limb.

I would recommend waiting until I get the .25 cal valve and E-TaCREG finished (about two weeks) and use it to get the velocity you would like. I am in the process of testing the latest generation and expect to publish results…Read more

I have looked at E-Bay and craigslist. But I was hoping for a more consistent supplier. They seem to be as scarce as hens-teeth. Luxfer has a minimum order of 100pcs, so that’s a non-starter. Others won’t take their regulators off, I have no desire to pay for them.

The search continues…..

Jim

Sorry I haven’t gotten a chance to reply to your PMSG….it’s freeeekin crazy here at E-TaC Central.

There is no problem using any and all of the available valves with the E-TaC or E-TaCREGs.

The standard Condor valve will take about 30-40 fps off the hi-flow valve, where as Tony’s great valves will add 80-100fps to the…Read more

I make an adapter for the Airforce frame that allows you to mount a standard bipod on it.

The other option is to buy an Airforce bipod.

The cost is $45.

Jim

Most of the larger bottles are either 5/8-18 UNF or 3/4-16UNF. I know of a guy who wanted a larger bottle just like you with the M18 threads. He called Catalina and was denied. Doubt the “big guys” would entertain it as the customer base is limited.

I’d be happy to make an E-TaCHPA for the 5/8-18UNF bottle. 😀 😀

Jim

I’m having trouble getting a good consistent velocity at the very low tophat setting needed. Doesn’t seem to like being less than .030 from the valve.

I’ll see if I have a Talon valve and try them again as time allows.
Jim

I just did some testing with the 12″ .22 barrel at 2500psi.

I don’t have any 14.3 but here’s what I do have:

JSB 15.8: 920fps
JSB 18.1: 860fps
Kodiak 21: 828fps
JSB 24.5: 765fps

I only did one string with the 18.1 and got 17 shots. YIKES, that sucks. This is too fast to try to push them in the 12″ barrel without being very…Read more

Pab is right. You’ll probably need a little higher reg pressure than the tank pressure at which you get your best shots. The pressure impulse is shorter and the decline in pressure is faster because of the limited volume of the E-TaCREG. There probably is not a noticeable drop in pressure in the tank from the opening of the valve to…Read more

I’d get someone who knows lathes to look at it with you. If there is excessive runout in the headstock bearings, the cost to fix will be more than the lathe is worth. Also, make SURE it has the quick-change gears like on the bottom left of the headstock. You will not want to be changing gears manually. It’s the small block…Read more

Jim

In short: regulated guns present the same pressure and volume of air to the pellet regardless of tank pressure and volume. This means consistent velocity (therefore accuracy) and higher shot count.

Regards,
Jim

so if I installed E-TAC on my standart rifle it will become very stable?

and can…Read more

In short: regulated guns present the same pressure and volume of air to the pellet regardless of tank pressure and volume. This means consistent velocity (therefore accuracy) and higher shot count.

Regards,
Jim

In my humble opinion.

Jim

We tend to call the turret knobs. Yeah, I make them. Perhaps you’d like something like this.

These are for two different scopes, they are not supposed to be the same size.

The rings are indicator mounts. They have a pointer in them to point at the turret knob or the sidewheel.

One stop shopping,

Jim

SAVAGESAM was kind enough to send me some .22 Kodiaks. Thank you soooo much Sam!!!

I had a request for the right reg to get 890fps in a .22 with Kodiaks in a 18″ barrel, so I did a quick setup today. No time for a full string.

Got 910fps from a 2k output, 18″ AFB reg. I think this is really pushing the 2k reg as the difference from 890…Read more

Jim

My Sidewinder did indeed come within .001 of yours. You probably just suck at measuring…LOL!!!!

Here is my personal wheel on the Sidewinder. Unfortunately the illuminated reticle will not be able to be used. But I cut enough clearance so it doesn’t get turned when ranging.

Jim

I asked the dive shop to call Triton to see what the thread spec is. I have not heard back.

Any dive shop will have a “pony bottle gauge” with the right threads. I know Halcyon makes one as well…about $90 worth.

Dave and Pablouk,

I highly doubt the reg will ever let any more air pressure through. The act of letting air…Read more

The burst disc bursting is strange, indeed. I’ve not had any problems with the regs I’ve sent out. I pressure test each one before it leaves and I’ve not popped any.

If you are having trouble finding some, I’ll send a few your way…just let me know.

Jim