Desert Precision Gunworks 22LR Action Updates

I keep up with 3 of these rifles so let me explain just a little bit.

For the bolt that goes with the pics above the pin is out 2 turns with a 15 lb. white spring.

On my bolt the pin is out 2 turns with a 14 lb. red spring.

On the 3rd bolt the pin is out 1 turn with a 14 lb. red spring.

Each bolt is just a little different but set up the way I described they all give the same results.....firing pin strike and on target. I found differences in where the cocking piece indexes when the pin is screwed all the way in and also in the number of turns out it takes for the firing pin to bottom out in the bolt nose.

My headspace is .043/.044 best I can tell.

Hope all this makes sense Sir.

I did the tuning of the firing pin, and I went from 22# spring down to a 15# spring. I never had any failures to fire, but after running a few hundred rounds of ammo, I have found the 22# spring to still have the best SD/ES and group sizes. So I've just left it at 22#.
 
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I keep up with 3 of these rifles so let me explain just a little bit.

For the bolt that goes with the pics above the pin is out 2 turns with a 15 lb. white spring.

On my bolt the pin is out 2 turns with a 14 lb. red spring.

On the 3rd bolt the pin is out 1 turn with a 14 lb. red spring.

Each bolt is just a little different but set up the way I described they all give the same results.....firing pin strike and on target. I found differences in where the cocking piece indexes when the pin is screwed all the way in and also in the number of turns out it takes for the firing pin to bottom out in the bolt nose.

My headspace is .043/.044 best I can tell.

Hope all this makes sense Sir.
Thank yo for the information, greatly appreciated. My last tuning of my V22S bolt is 4 turns out with a 20 b spring. The index from screwed all the way in is 3/4 of a turn, so the bolt is now 4 & 3/4 out. I test my V22s using the Eley x-shot targets, for me groups don't seem to tell me much. Shooting for score on the x-shot target tells me how I and the gun are doing. My last two targets shooting a new lot of center x are the best I have ever shot with the V22S one was 250/250 x18, calculated group 9.03mm, the other was 249/250 x17 group 9.79mm. So I am at 4&3/4 turns with a 20lb spring. I like the results a lot but don't know how I got to this point with the bolt, other than trial and error. I want to understand how, not trial and error. Mike Bush says the VG video is not how to tune the bolt, waiting for his reply to my how-to do-it question.
 
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I did the tuning of the firing pin, and I went from 22# spring down to a 15# spring. I never had any failures to fire, but after running a few hundred rounds of ammo, I have found the 22# spring to still have the best SD/ES and group sizes. So I've just left it at 22#.
You've got one on me, I have no idea what the SD/ES numbers are on the ammo I've been shooting. In the last 12 months I've probably shot well over 50 different lot #'s of ammo.

Have you modified the tip of your firing pin to hit inside the rim?
 
Thank yo for the information, greatly appreciated. My last tuning of my V22S bolt is 4 turns out with a 20 b spring. The index from screwed all the way in is 3/4 of a turn, so the bolt is now 4 & 3/4 out. I test my V22s using the Eley x-shot targets, for me groups don't seem to tell me much. Shooting for score on the x-shot target tells me how I and the gun are doing. My last two targets shooting a new lot of center x are the best I have ever shot with the V22S one was 250/250 x18, calculated group 9.03mm, the other was 249/250 x17 group 9.79mm. So I am at 4&3/4 turns with a 20lb spring. I like the results a lot but don't know how I got to this point with the bolt, other than trial and error. I want to understand how, not trial and error. Mike Bush says the VG video is not how to tune the bolt, waiting for his reply to my how-to do-it question.
Like yours one of our pins is 3/4 turn and the other two are only 1/8 of a turn from index when the pin is all the way in. This is one of the very noticable differences I've found. Another is none of the three pins turn out the same number of turns from index to touch the bolt nose. These differences are the reason it's difficult to go by how others set up their firing pins and springs.

The more you turn your firing pin out, the more relaxed the firing pin spring is. On the other end, if you don't turn the pin out far enough you take a chance on the cocking piece bottoming out inside the bolt tailpiece when fired.

Sounds like your rifle is shooting pretty good so you shouldn't have any trouble fine tuning it. I think good ammo and reading conditions are the two biggest factors of all.

Thanks!!!
 
You've got one on me, I have no idea what the SD/ES numbers are on the ammo I've been shooting. In the last 12 months I've probably shot well over 50 different lot #'s of ammo.

Have you modified the tip of your firing pin to hit inside the rim?

Yes, maybe I could do more -

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Sorry if this has been asked but any plans for a single shot, or even a plug for the current action for the BR guys?
Yes, I already have a single shot adapter mag buffer and already have a action design for a dedicated BR setup flat bottom with mid locking lug as the next project once these are smooth production
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Im already running action bodys. Bolt assemblies and made some final refinements. Once things get rolling, ill have options for ejection port configurations E.G: Left Port Right Hand.
The goal is to have a system of manufacturing checks to keep all tolerances within a thousandth 0.001.
Made some big investments in a 5 axis VMC's and I'm currently enrolled in a class in heat treating. I will be in house heat treating my own parts
 

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Yes, I already have a single shot adapter mag buffer and already have a action design for a dedicated BR setup flat bottom with mid locking lug as the next project once these are smooth productionView attachment 8745330

Im already running action bodys. Bolt assemblies and made some final refinements. Once things get rolling, ill have options for ejection port configurations E.G: Left Port Right Hand.
The goal is to have a system of manufacturing checks to keep all tolerances within a thousandth 0.001.
Made some big investments in a 5 axis VMC's and I'm currently enrolled in a class in heat treating. I will be in house heat treating my own parts
Def looking forward to your BR action with left port.
 
Incase those didnt see the YouTube video of Rim-X mag compatible and 17HMR/22WSM capabilities. Also shows the reliability of the control round feeding without a barrel.

The firing pin was turned in to not allow protrusion for those concerned for a live round to go off in the video.

Check out the video here
 
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I got my rifle back this weekend. Unfortunately, with all the rain here in Texas, I only got one day to test it.

A few small tweaks are being made on the bolt stop and extraction areas and feeling confident that this is very very close to meeting Kenny’s high standards.

I’m expecting a few parts, and a 95% production rifle to test compared to my prototype and should have another update by next weekend.

I’m looking to take a DPG to the Rimfire Nationals at the end of this month. No harder test than that.
 
I got my rifle back this weekend. Unfortunately, with all the rain here in Texas, I only got one day to test it.

A few small tweaks are being made on the bolt stop and extraction areas and feeling confident that this is very very close to meeting Kenny’s high standards.

I’m expecting a few parts, and a 95% production rifle to test compared to my prototype and should have another update by next weekend.

I’m looking to take a DPG to the Rimfire Nationals at the end of this month. No harder test than that.
Where are the Rimfire nationals? Can you leave the name and date? Id like to go watch if close enough.
 
Where are the Rimfire nationals? Can you leave the name and date? Id like to go watch if close enough.
 
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Sorry fellas, been really busy in production with these actions.

I wanted to share a video showing how these action bolt raceways are precision wire EDM cut. These will be a true precision made action!. These Genes1s actions are prepared action body rounds with the barrel threads already done and bolt raceway are then burned concentric to the threads with a wire edm. Ensuring perfect concentricity of barrel alignment to the bolt assembly.
Its an extra step and adds more time in production, but ensures a better overall quality

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Here's a small video of one of the last actions being tested before production. It got first in a 300 yard long Gong match last weekend, less than 100 rounds in the barrel. Fresh off the lathe
Im keeping the smoothness as much as I can while still implementing the rear bolt retention system. Having this feature does add a small slight resistance moving the bolt back and forth. Really not felt if your running the bolt normally, but can feel the slight resistance taking a "benchrest" slow chambering

My question to you, do you guys want this feature?

 
I like the bolt retention feature. I'd hazard a guess that a good portion of failure to feeds are because the bolt slid forward at some point and partially dislodged a round from the mag. I haven't had it happen as much with my Vudoo but it happened several times with my Bergara when I ran one.
Is it something that could be removed from the action if the user decides they didn't like it?
 
I like the bolt retention feature. I'd hazard a guess that a good portion of failure to feeds are because the bolt slid forward at some point and partially dislodged a round from the mag. I haven't had it happen as much with my Vudoo but it happened several times with my Bergara when I ran one.
Is it something that could be removed from the action if the user decides they didn't like it?
We can provide a rotating bolt assembly that will not engage this feature at owners request whenever they feel its needed to change. These bolt assemblies are a tool-less design like a Vudoo and can be field disassembled and swaped in seconds
 
My feeling is that you spent all this time and energy in design and tight tolerance to have the smoothest bolt movement in action and this “feature” rear bolt retention takes “away” that smoothness when slowly running the bolt becomes the focal point for negative comments.

Can this be offered for those that want this feature (and are ok with ever so slight bolt resistance) and for those that don’t want that rear bolt retention feature can have it without?

I would opt to forgo that feature (as it is designed today) if I can have it not on mine but it does not prevent allowing it configured for others that want it.
 
Its hard to explain how the bolt feels and I try to post videos with different folks running the action. But again, its a video. Im my own worst critic, I admit when comparing to actions like an Anchutz or a well broken in Vudoo/Rim-X. Luckily I can remove it or add it easily. We also been threatened a cease and desist for the bolt retention feature. Even though their is a patent to this exact feature already in place, that im the inventor of. (Patent # 12,031,789)

I've taken a lot of time perfecting this and satisfied where its at based off the numerous testing from pro shooters and regular shooters these past months.

Im excited to be days away from the first release of these actions. Yet still taking your suggestions in. Im confident itll proove itself. Thank You for those following and patiently waiting.
 
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I am excited for your new barreled action as showcasing what becomes when no compromises are made results in high reliability and performance. Genes1s time has come.

I say that you launch it with the features you see fit…period! At this point, no second guessing, stay the course.
 
How do we leave a deposit for the new action?
As much as id like to take deposits, we most likely wont be doing so, as an attempt to eliminate lead times. Instead, these will be launched around end of Oct being ready to ship. Just waiting on springs to arrive and see how much production we will need to invest in to keep up
New CNC's just hit the shop floor and we are tooling those up currently with Kennametal and ISCAR tooling
 
@EagleEyeShooting So one question I have pertains to the mag buffer system. How will it work if we run different mags in a match such as vudoo, l3i, etc. Will the buffer have to be switched out? If I run a l3i mag but want to swap out to a vudoo mag mid stage (malfunction or stage requiring a mag change), I'm curious how that would work.
 
@EagleEyeShooting So one question I have pertains to the mag buffer system. How will it work if we run different mags in a match such as vudoo, l3i, etc. Will the buffer have to be switched out? If I run a l3i mag but want to swap out to a vudoo mag mid stage (malfunction or stage requiring a mag change), I'm curious how that would work.

The V22 mag buffer will still allow the L3i mags to work but will have mag side slop and able to dive down if preloaded. But not the other way around if you have the L3i mag buffer, the V22 mag will not seat. The B14r mag buffer is specific to the B14r mag and won't allow the V22 or L3i. The Rim-X will accommodate all mags however, this will allow the L3i mag to seat to deep and over protrude the neck of the mag causing your bolt to jam into the back of it.

This shows how much difference their is in mag fitment. The point to the mag buffer system is to tighten up tolerances for reliability to the specific mag your using setting the appropriate height of the mag which is the most crucial. Your adjustable mag latch doesnt compensate for over seating of a mag, side to side slop or dipping of the mag. Even certain chassis like the J Allen that allow more mag adjustment still do not eliminate the play of these 22LR mags.
This is competition focused allowing the shooter to have the confidence in reliability without mag feeding issues from mag play. The problem us shooters are having is the fact that their is no standized magwell or AICS 22lr mag measurements. Aftermarket 22lr mags have to make compromise in fitment for functionality in multiple platforms and chassis. IMO, stick to one mag and our mag buffer system will allow you to confidently shoot off a preloaded mag into the barricade or even having all the weight on the mag still will feed without an issue.
 
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The V22 mag buffer will still allow the L3i mags to work but will have mag side slop and able to dive down if preloaded. But not the other way around if you have the L3i mag buffer, the V22 mag will not seat. The B14r mag buffer is specific to the B14r mag and won't allow the V22 or L3i. The Rim-X will accommodate all mags however, this will allow the L3i mag to seat to deep and over protrude the neck of the mag causing your bolt to jam into the back of it.

This shows how much difference their is in mag fitment. The point to the mag buffer system is to tighten up tolerances for reliability to the specific mag your using setting the appropriate height of the mag which is the most crucial. Your adjustable mag latch doesnt compensate for over seating of a mag, side to side slop or dipping of the mag. Even certain chassis like the J Allen that allow more mag adjustment still do not eliminate the play of these 22LR mags.
This is competition focused allowing the shooter to have the confidence in reliability without mag feeding issues from mag play. The problem us shooters are having is the fact that their is no standized magwell or AICS 22lr mag measurements. Aftermarket 22lr mags have to make compromise in fitment for functionality in multiple platforms and chassis. IMO, stick to one mag and our mag buffer system will allow you to confidently shoot off a preloaded mag into the barricade or even having all the weight on the mag still will feed without an issue.
Thanks for for the explanation!
 
@EagleEyeShooting Kenny any updates on the release date?
Ive been running actions this whole month... only thing im waiting on is springs. I plan on including Mike Bushes DDG 10 round magazines. They are on preorder right now. If they come available after Tentative release, a voucher to redeem a mag will be included

Tentative release is end of OCT

I just implemented the last feature to the bolt assembly for adjustable headspace. It uses a taper lock grade 12.9 T8 torx to secure the adjustable lug from ISCAR. These are the same torx that secure tooling inserts so it will not come loose to vibration or thermal expansion. Also will include a tube of Vibra-Tite thread locker. I think the picture is self explanatory on how it works. Let me know what you think?
 

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Ive been running actions this whole month... only thing im waiting on is springs

Tentative release is end of OCT

I just implemented the last feature to the bolt assembly for adjustable headspace. It uses a taper lock grade 12.9 T8 torx to secure the adjustable lug from ISCAR. These are the same torx that secure tooling inserts so it will not come loose to vibration or thermal expansion. Also will include a tube of Vibra-Tite thread locker. I think they picture is self explanatory on how it works. Let me know what you think?
How many cycles with ammo have to tested this to verify that the headspace holds true?

I think having this feature beats out bolt and/or barrel shims and allows those that want to tinker, er I mean tune, to have that ability to dial in to their ammo. I am just afraid that if they don’t follow torquing guidelines or don’t too much that the headspace adjustment will be a point of failure due to user fault but point their finger at your design and implementation.

If you have over a thousand cycles (reasonably high test count) with ammo and measurement verification that it didn’t shift, and with several “production made” bolts, then you would have solid and objective data to back your design from mob scrutiny.

I volunteer to test this with my own ammo sir!
 
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How many cycles with ammo have to tested this to verify that the headspace holds true?

I think having this feature beats out bolt and/or barrel shims and allows those that want to tinker, er I mean tune, to have that ability to dial in to their ammo. I am just afraid that if they don’t follow torquing guidelines or don’t too much that the headspace adjustment will be a point of failure due to user fault but point their finger at your design and implementation.

If you have over a thousand cycles (reasonably high test count) with ammo and measurement verification that it didn’t shift, and with several “production made” bolts, then you would have solid and objective data to back your design from mob scrutiny.

I volunteer to test this with my own ammo sir!

Ive accumulated over 25K rounds between 3 rifles and have sent 2 actions to a destructive test for shearing of the bolt and bolt stop via hydraulic force testing. JD's rifle was used in the Raw metal just to see potential wear with regular use. No headspace change was measurable.

As stated, im using the highest grade material and doing the heat treating myself. Bolts are made of 4340 and will be nitride. The material alone holds up to any wear on normal use.
 
Ive accumulated over 25K rounds between 3 rifles and have sent 2 actions to a destructive test for shearing of the bolt and bolt stop via hydraulic force testing. JD's rifle was used in the Raw metal just to see potential wear with regular use. No headspace change was measurable

As stated, im using the highest grade material and doing the heat treating myself. Bolts are made of 4340 and will be nitride. The material alone holds up to any wear on normal use.
Fantastic!
 
I think having this feature beats out bolt and/or barrel shims and allows those that want to tinker, er I mean tune, to have that ability to dial in to their ammo. I am just afraid that if they don’t follow torquing guidelines or don’t too much that the headspace adjustment will be a point of failure due to user fault but point their finger at your design and implementation.

Ive been contemplating this feature and arrived to the conclusion. I can only make this product idiot resistant... not idiot proof. Just like scope rail and scope mount screws, it's the responsibility of the owner to check and maintain their firearm before its use.

I mostly added this feature to remove the difficulty of machining the lug integral to the bolt assembly and have a better overall finish.
 
Ive been running actions this whole month... only thing im waiting on is springs. I plan on including Mike Bushes DDG 10 round magazines. They are on preorder right now. If they come available after Tentative release, a voucher to redeem a mag will be included

Tentative release is end of OCT

I just implemented the last feature to the bolt assembly for adjustable headspace. It uses a taper lock grade 12.9 T8 torx to secure the adjustable lug from ISCAR. These are the same torx that secure tooling inserts so it will not come loose to vibration or thermal expansion. Also will include a tube of Vibra-Tite thread locker. I think the picture is self explanatory on how it works. Let me know what you think?
Love this idea!! Super simple and the E & L cover all ammos with minor adjusting!! Can not wait to get one of your barreled actions.
I am on the pre order list, not sure where but will you be sending out messages to the guys on the list when the time comes?
 
Love this idea!! Super simple and the E & L cover all ammos with minor adjusting!! Can not wait to get one of your barreled actions.
I am on the pre order list, not sure where but will you be sending out messages to the guys on the list when the time comes?
I will admit that I can be a bit slow. I couldn’t figure out what “E” and “L” signified until your comment! Doh!
 
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Love this idea!! Super simple and the E & L cover all ammos with minor adjusting!! Can not wait to get one of your barreled actions.
I am on the pre order list, not sure where but will you be sending out messages to the guys on the list when the time comes?
Ill have a live chat discussing the launch date and will probably end up putting a count down on our website. Until I secure these springs is when I can set an official date

I must emphasize thiers a lot of back in stock request and im currently focusing on the clients who invested and trusted patiently that switched from the Rim-X. They will be rolling out first with a special gift from me personally. Our shop has always been faith driven, trusting our lord Jesus to guide my hands in every work I do.
These may sell out fast on initial launch, but I can ensure Ive made some heavy investments in new CNC machinery to help along with partners in this industry that you guys can go to and purchase builds from them. Itll take a little time to adjust to production manufacturing and quality control. Pretty soon you'll see the feedback from shooters in the field
 
Ill have a live chat discussing the launch date and will probably end up putting a count down on our website. I must emphasize thiers a lot of back in stock request and im currently focusing on the clients who invested and trusted patiently that switched from the Rim-X. They will be rolling out first with a special gift from me personally. Our shop has always been faith driven, trusting our lord Jesus to guide my hands in every work I do.
These may sell out fast on initial launch, but I can ensure Ive made some heavy investments in new CNC machinery to help along with partners in this industry that you guys can go to to also purchase builds from them. Itll take a little time to adjust to production manufacturing and quality control. Pretty soon you'll see the feedback from shooters in the field
Hey Kenny, I assure you once you are ready to take this action and take orders for RH bolt LH port and pair with barrel and your single round mag adapter, I am ordering and turn that one into my benchrest shooter (until you open up your benchrest option).
 
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Hey Kenny, I assure you once you are ready to take this action and take orders for RH bolt LH port and pair with barrel and your single round mag adapter, I am ordering and turn that one into my benchrest shooter (until you open up your benchrest option).
Outstanding, yeah I've broke down my machining to sections where I can call up a sub program and machine Left / Right port configurations aswell as bolt. Trying to train my teenage son to be a CNC operator is another quest on its own with his attention span
 
Ill have a live chat discussing the launch date and will probably end up putting a count down on our website. Until I secure these springs is when I can set an official date

I must emphasize thiers a lot of back in stock request and im currently focusing on the clients who invested and trusted patiently that switched from the Rim-X. They will be rolling out first with a special gift from me personally. Our shop has always been faith driven, trusting our lord Jesus to guide my hands in every work I do.
These may sell out fast on initial launch, but I can ensure Ive made some heavy investments in new CNC machinery to help along with partners in this industry that you guys can go to and purchase builds from them. Itll take a little time to adjust to production manufacturing and quality control. Pretty soon you'll see the feedback from shooters in the field

And this is the exact reason why I am waiting for you and the exact thing I am doing....I am certain that I will not be in the first batch and am thinking most likely the 3rd run....these BA's are going to go like hot cakes!!
 
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