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Messages - Hajimoto

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Shooter1721 / Re: Under attack YouTube has taken down air gun channels
« on: March 08, 2018, 08:24:46 AM »
Most are back up and I for one and very happy they are.
Keep safe and stay real!

Hajimoto's Airgun Annex / Umarex Gauntlet: Tune Kit Results (Video)
« on: March 04, 2018, 05:41:29 PM »
Yep, another Gauntlet Tutorial!  This time I walk through how to adjust your Tuning Kit and I show you what you can expect from your Gauntlet when all is said and done. All the shot strings I made were using the stock 13ci bottle that comes on the Gauntlet.

The first 10 shot string was made to help illustrate how the Gauntlet performs on LOW setting using the Umarex test pellet which is the RWS Hobby 11.9gr wadcutter pellet.  I think you will agree that it smokes em down range like a boss.

The next shot string was made shooting the heavier and more common Crosman 14.3gr domes. The power setting was the same but I don't stop at 10 shots... I think you will be amazed at what happens next.

The power adjuster was turned 2 full turns from Low to Medium, Max power would not be too far away. I think 1 additional clockwise turn more and shots would be 40 or so at high power at over 920FPS.

Another fine video.

I notice you posted the second video on Vimeo rather than YouTube. Considering the recent climate at YouTube, I'm not surprised.

In this video, I install a modification kit that takes the Gauntlet from 60 shots per fill to over 105 shots per fill using the stock 13 cu. inch removable tank. The 37-minute installation video details the complete disassembly of the Gauntlet and step by step installations of the Valve modification, Hammer Spring, Power Adjuster and Trigger spring. I refer to the owners manual and the schematic drawing throughout the process so you will be able to refer to it at any point during the installation.

See the video description on the respective video hosting site for detailed information and links to items covered in the video.

Remember my Motto, " I do not get paid to make these videos, your comments and feedback are my compensation, please be generous!"

Thank you!

Hajimoto's Airgun Annex / Re: Benjamin Marauder GEN2 Weight Loss
« on: February 20, 2018, 12:32:28 PM »
This is a very well done video, and one even a neophyte can follow. Hats off to Hajimoto!
I resemble that remark!  ;D
Thanks for the kind words Alan!

Hajimoto's Airgun Annex / Re: Benjamin Marauder GEN2 Weight Loss
« on: February 20, 2018, 11:36:57 AM »
Be sure to have some popcorn and beverage  ;)

Hajimoto's Airgun Annex / Benjamin Marauder GEN2 Weight Loss (VIDEO)
« on: February 19, 2018, 08:39:58 PM »
Well New Years Resolutions are always made to lose weight and here is my MROD GEN2 .22 keeping its promise to lose a few pounds. I upgrade the heavy steel air tube with a Jefferson State Aluminum Cylinder and man does it lighten up the rifle!

The rifle will be torn down and reassembled with a JSAR Aluminum Air Cylinder, JSAR SS Balanced Valve, JSAR Super Hammer, JSAR TSS GEN2 and Huma regulator. The rifle will weigh almost 2 pounds less when this is all said and done. The MROD had most of these modifications already installed but I never documented the installation but have been promising you guys that I would, well here it is!

This Air Stripper is a friction fit. No glues epoxies or tape.
Epoxy?!?!? Holy COW! thats nuts

Hello Shooty Shooters!
 Talking with other Gauntlet owners and speaking with the Umarex Warranty folks, it appears the Air Strippers were made just a little undersized. The Air Stripper is made in an injection mould and they split right on the seam as shown in my photo below. Please know that Umarex will replace the cracked Air Stripper free of charge just go to their customer service area and fill out the form

When I called Umarex to explain that stripper was shot balls they told me that they did not receive their parts order in the US yet but as soon as it was in, I would receive one. So while I waited for my new air stripper to arrive I started working on a more efficient design which would relieve more air from the projectile stream and force it rearward towards the release hole that drilled in the barrel shroud near the breech.

I went through 10 redesigns before I found one that worked well and I tested it for over 1000 shots. This air stripper is designed to be used with the factory one-piece baffle or my HP Baffles. Obviously, there is a greater benefit is used with the HP Baffles as they remove even more air and turbulence from the pellets travel path (as is shown in other folks HP Baffle result posts).

Below is the 3D design of the stripper and below that is the Air stripper after 1000 rounds sent through it. You will notice the grey color to the silicone lube from all the lead dust as the stripper was exhausting rearward.

If you are on Facebook you can get more details in my HP Air Stripper Album or click here for the same Information.
I am very pleased with the results and hope this information and fix have some value to you.
Thank you

Hajimoto's Airgun Annex / Umarex Gauntlet: Barrel Shroud Support (Video)
« on: January 25, 2018, 06:30:39 AM »
Hey guys!

It's time for another Umarex Gauntlet Hajification video  :D  This time we address one of the biggest gripes most users have with rifles of this configuration, the free-floating barrel and barrel shroud.  When the shroud is hit or bumped while hunting the POI changes requiring the shooter to resight the weapon.

My solution is a 3D printed component that clamps onto the air bottle and supports the barrel shroud. The bottom of the clamp also has a small section of Picatinny rail for a flashlight or pointer.  Do not mount a bipod or rest of any kind on this as it will directly change your POI higher as the tank is directly connected to the barrel by the band. If the bottle is pushed up, so is the barrel.

In this video, I walk you through the issue and how I solved it.

Please, be sure to read the YouTube video description for details. There is a lot of information in there, be sure to read it all  ;)

Thank you!

Hey Hey Hey Shooter guys and gals!

I have yet another video in my Gauntlet series for ya'll to check out. This time we talk about quieting down the bark of the Gauntlet. I share with you the concept of the cone-stack baffle suppressor and I demonstrate my 5 piece cone stack and how much more efficient it is at reducing sound and pressure.

The five (5) piece stackable baffle set is designed as a direct replacement to the Gauntlets one piece torpedo design. The multi-stack interlocking cones create chambers that disrupt and slow the air, stripping it away from the projectile path and forced to buffet through a series of pathways.

The air is forced to go through this process five times. The sole object is to pull the kinetic energy out of the air so that by the time it reaches the end of the shroud, it's atmospheric disturbance is far less, thus reducing the amount of noise and turbulence of the air that exits the shroud.

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If you're interested in a set, all the purchase info is in the YouTube description or hit me up with a PM.

​Thanks for your time!

Hajimoto's Airgun Annex / Umarex Gauntlet: Trigger Two Stage(ish) Mod
« on: January 02, 2018, 06:59:23 PM »
Howdy shooty shooters!  ;D

 For all you QB78/79 heads, there will be nothing new here for ya but for the new to the game Gauntlet owners that have no clue what a QB78/79 is, this may have some value!

In this video, I show you how you can take a $3.79 spring plunger and make your trigger act more two stage(ish) than its current long gritty single stage trigger.

I will use a spring from an ink pen to give a soft first stage and the spring plunger will act as the second stage. I list all tools required for the mod in the video and in the YouTube description, I provide a direct link to the specialty items to make this mod doable.

Please let me know if you any questions.

Dana's Webb / Re: Happy Holidays, what a great year.
« on: December 29, 2017, 06:35:10 PM »
 Loved your stuff in 2017 and look forward to your stuff in 2018! The hunting on a budget series is going to be awesome to see because you will have a fair amount of great choices in the entry-level category today that were not there only 5 years ago.

Thanks for taking the time to share your adventures and Happy Holidays to you and your family Dana.

Hajimoto's Airgun Annex / Umarex Gauntlet: Bipod installation video
« on: December 22, 2017, 11:34:18 AM »
Hey guys!

Well here is another video in my Gauntlet series and this time I walk you through how to install a bipod on the Gauntlet in a functional location.
Please be sure to comment and share.

Thank you

Thank you for picking up on my Hajism  ;D

Let's take a look;
  • I took the regulator out and apart the first time to investigate and install the homemade aluminum foil shims, result from 1050 to 1200ish.
    Regulator was removed and a 0.020 shim was installed result from 1200 to 1350ish.
  • Based on the results of 0.010 shim equated to +125 PSI I added another and ended up with somewhere around 1350ish.

Looks like I was lucky and only had two visits inside the reg.

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