survivalshop

I emailed them my issue & have not heard from them . I looked at their sight & they have a FAQ section , some good info , but in the kit you get has two different thickness rubber spacers & I just switched to the thicker spacer & attached it behind the Muzzle device & even though I thought the Bayo was too far back & the blast zone on the curved part of the Bayo was near the end of the Muzzle , it worked . Worked on all the different loadings I used the other day ( in-between Malfunctions , of course ) but it worked just fine . I just have to experiment with the different Muzzle devices & sizes I have on these rifles .

Have you cleaned rthe Primer pockets out as part of the reloading process ? That is not a good condition to have , since a protruding Primer can be set off , just by seating it in the chamber .

The Bolts movement is only because it attached to the Bolt Carrier ( via Cam Pin linkage ) , both turning or rearward movement . It has no propelling action at all , its attached to the only component that has direct movement through the burnt propellent gas pressure , the Bolt carrier . I'l agree its not a conventional Piston process as we have been known to see on Piston driven motion machines .

Your going to make the same Pattern as the Video ? That looks Great , I may have to do something on one of mine , not sure which , yet . Waiting for more progress photo's .

How can the Bolt move forward ? Take an unmounted Barrel & a Bolt , with an spent , fired case & lock the Bolt & spent case in the Chamber & tell me how mush you can move it . You have to remember that when that case was fired , it had about 50,00CUP forcing it back against the Bolt Face & any play , which there would be none , because the Bolt is locked in place by Bolt Locking Lugs , against the Chamber of the Barrel . Why do you think you have Head Spacing ? You could say the equalizing of pressure , when the pressure in the chamber & gas pressure from the gas tube filled or pressurized the Bolt Carrier , relieved any rearward pressure from Powder charge ignition & that not moving forward , its just going back to head space tolerances . How are you saying the Bolt is a Piston , when does it move , pistons move , its why they are called pistons , the BC is the Piston , because it moves when gas pressure fills that chamber behind the Gas rings , the Bolt with its gas rings , keep a seal in the chamber , to provide consistent gas pressure for continued rearward movement of the Bolt Carrier & with the direct link of the Bolt to the Carrier by the Cam Pin , it ( Bolt ) is dragged along with the rearward travel of the Real Piston , the Bolt Carrier . The Bolt is nothing more than a locking & unlocking device , with the added, sealing gas rings & of course Components to Extract & Eject the spent fired case .

I got your email & voice mail . See if my crude measurements make any sense to you . Of all the people , you will know if the small differences even mean anything , maybe I'm just grasping at straws .

The Bolt may move forward , if it does , I can't see it moving very far , if at all, its already locked in place & is probably forced back against the locking lugs ( not forward ) by the cartridges powder ignition against the Bolt face. The gas pressure behind the bullet , with some of it being directed down the gas tube to force the Bolt Carrier back to unlock the bolt . That is a timing effect, with the pressure drop & fired case cooling & contracting from the Chamber walls . Gas pressure drops dramatically , once the Bullet exits the Muzzle . The gas rings on the Bolt are to seal that chamber behind the Bolt , in the Bolt Carrier ,so the gas pressure can push the Bolt Carrier rearward ,to move the Bolt out of breach lock , by the Cam path in the Bolt Carrier. So , I don't think the Bolt Moves forward at all , what helps it unlock is the loss of pressure in the chamber & the Cartridge cooling & contracting & Caming of the Bolt Carrier .

Washguy , sure glad you cleaned it up , we can see there IS a work bench in there . LOL This is my cleaning station & inspection Bench , notice the very large bottle of Hoppes # 9 in the back ground . I do a lot of the fine fitment work on my reloading bench & the big Vice is in the Garage , for barrel install/removal .

Check my photo's of the two Bolts above , you can see the DPMS Bolt has the Extractors Lug the same as the DWilson .Not sure how it will work with single loading , I try not to do it .I measured them I believe in one of the posts on this thread .You going to make me look , LOL You can see the Lug on the DPMS Is the same , although its used & worn .

I installed the original Extractor that came with this Bolt & it sits flush with the out side of the Bolt , just like the DPMS . I'm beginning to think the Spec's on the two Bolts are made different or there is something not right with this particular Bolt . I took a measurement of the Extractor Pin depth from the flat of the Bolt's Extractor channel to the Pin & there is a difference between the two Bolts .Here is what I got & a $hity photo from this AM of how I took the depth reading . Making sure I wasn't reading from the wear or guide ring on that part of the Bolt . DPMS Bolt - 0.069" DWilson Bolt - 0.076" It seems the Extractor Pin on this Bolt is set deeper into the Bolts recess for the Extractor , compared to the DPMS , not sure if its because they use different spec's or this Bolt was machined wrong . I don't have an answer & why would the original Extractor fit differently then the replacement from the DWilson Kit or the DPMS Extractor ? I don't have that answers . With the Pin being set deeper & that part of the Channel , where the spring sit being deeper , I think its making the geometry of the Extractors function wrong , not to mention the actual claw part of the Extractor being too shallow , is a combo that makes this Bolt fail . I do know one thing the Extractor that came with this Bolt was bad from the get go & comparing it to the others show that & I do not trust this Bolt with anyones Components in it , I think I got one that made it through the crack . I know my measurements are crude , but I made sure I got consistent readings before I came to any measurement conclusions .

Where did you dig that thing up LOL I get the reference on Steam . LOL

You are getting all soft & cuddly on us , damn . LOL

The guy in the video doesn't sound or look all that old , so it kinda makes me wonder if he just got wood for LWRC rifles . Don't get me wrong , they make good stuff , but its perfect for him & I like the way he said its his rifle , but he still has a price tag on it , unless it reads " MINE " on it. LOL I also see a lot of people compare the M1 series of rifles when comparing Piston guns , that are , but much different configuration then any AR system & really no comparison . Worm can open .

DPMS Chromed BC . If that was the cause of my issue , why would the DWilson Bolt work with a new DPMS Extractor . Kinda eliminates the BC, IMO . I did find some interesting things when I disassembled the two Bolts & took measurements of the components & Bolt Extractor Channels . First off the original Extractor was doomed from the beginning , because the depth of the Exrtactor grove is too shallow , about half as deep as the DPMS & the new " Match " Extractor I just got in the kit , so that's one thing . When I cut it a little wider & may have gotten it slightly deeper , but its too shallow to get a good hold on the Case's Extractor grove & even though I polished it up because of the Burr's that were there , all I took off the face of it was the Black from the Nitrating process , it was not tough to take off , even with a Hard Arkansas round stone. The left one is the new Match one & the right is the one that came with the Bolt . There is a large difference in the Beefiness of the claw part , which I didn't alter Here are some comparison measurements , of course these are rough & done with the depth part of a digital Caliper . This is how I took the depth measurements of the Extractors claw for the cases Extractor grove ( this is for demonstration purposes , I used both hands with the Extractor on a flat surface ) Depth of New DPMS Extractor -0.087" Depth of Old used DPMS Extractor - 0.080" Depth of New Match DWilson Extractor - 0.071 " I decided to take measurements of the Extractor Channel in the two Bolts , because , when looking at the two Bolts , you could see from a side angle , the DWilson Bolt Extractor was slightly lower in the channel in the back spring area , where the DPMS was flush with the outside surface of the Bolt . DWilson Bolt DPMS Bolt Measurements of Extractor Channels , front was measured from the top of the Locking lugs to the forward most part of the Channel ( This would act as a stop for the spring loaded Extractor -DPMS & DWilson were both the same - front - 0.175" -Rear of channel ( where spring would be ) DPMS - 0167" DWilson - 0.177" You can see why the rear of the DWilson 's Extractor , at least in this Bolt , is sitting lower in the Spring area . It may be why whe Extractor spring in the DWilson Bolt feels stiffer , also The other measurement that I found interesting is the gap between the Ejector & the Extractor, measured on the Extractor claw to the Ejector itself . This measurement coincides with the actual Extractor depth & could explain why this set up on this particular Bolt is not working to Extract the spent case reliably . New DPMS Extractor in DWilson Bolt - 0.310" DWilson Match Extractor in DWilson Bolt - 0.317" Old Used DPMS test Bolt - 0.290" This shows a larger gap between the Ejector & the Extractor on the DWilson that is grabbing the Case . You may think that there is not much difference , but I have found with Firearms components , it doesn't take much to cause a component not to work reliably . A combination of more spring pressure & shallower griping section for the cases Extractor grove , can cause issues . I also took a measurement from the outside of the locking lug on the Bolt to the Locking Lug on the Extractor DPMS Extractor on DWilson Bolt -0.844" DPMS test Bolt - 0.826" DWilson New Match Extractor on DWilson Bolt - 0.851" All have to remember this is only one Bolt & it works just fine with the DPMS Extractor , so that shows how tolerances , even slight ones can cause issues . I have never got this deep into the spec's of a Bolt or its components before , never had to really , I've never had this much of an issue before.The Extractor's Channel measurements were interesting . If you guy's that have Dwilson Bolts , can look at them & see if the back portion of the Extractor ,above the Spring is sitting flush or is slightly below the outside to the Bolt diameter for me , I would appreciate it .

They could have been using pull down primed MilSpec ( or commercial ) brass for loading their Powder & Bullets . It would be all new never fired ammo components . Hard to say or as said , just remanufactured Ammo . The brass should be ok to reload , just Swage the Primer pocket if it has a crimped Primer .

I was just looking at Lucas lubricant , it was on sale somewhere , interesting reading . he probably won't say about the piston guns , because they may support the range in some way , maybe shooting competitions .

Nice , very nice !

I assume they are the same , compare them . Here is a funny thing that happened at the range today , I was swapping out Extractors & the spring flopped out onto the bench & bounced off the bench at my feet , its grass & muddy grass at that , lucky the bench I was sitting at was not under water like most of the others . I looked for that spring for fifteen minutes , even took my flash light out to see in the shade under the bench & couldn't find it , I shot & changed parts for another hour or so & I don't know why ,but I looked down at my feet & there was that little bugger sitting straight up looking at me like a lost puppy , so I took it home with me , what are the odds ? I'm going to take a closer look t these Extractors , there has to be something about them , I just haven't found it yet .

Went to the range today with the new Bolt components installed on the Bolt & am very disappointed . I first tried the Donut on the Extractor spring with the new Extractor & I had the same failures as before, with the Failure to extract & a fresh round trying to feed into the chamber with the spent case not ejected . I took the Donut out & failure rate was almost every round fired . I even cleaned the Bolt, Chamber/Barrel & it didn't change a thing . Went & again tried the DWilson Extractor I altered & it failed less then the other one & when it failed , it didn't pull the spent case out of the chamber . I didn't bother to put the DPMS Extractor back in , because I shot over a hundred rounds with it on this bolt with out a failure . This whole issue has me baffled , why seemingly good components would fail in this Bolt is a head scratcher . The only thing , and this may be really reaching , is the Bolt Carrier , its used & I wonder if there could be an alignment problem with the new Bolt in a well worn BC ? The reason I say this is , that the DPMS Bolt that works just fine , is the mate for this BC & they may have broken in or worn in a certain way that is causing a misalignment , I said it was a stretch LOL , but you never know ,we always think if a Bolt wears out or we replace a Barrel & install a new Bolt to go with it that the BC is OK , well Maybe it isn't , at least in this case .What throws that theory is , a new DPMS Extractor works on this Bolt , so if it were the BC , wouldn't it fail also ? The problem with this Bolt is defiantly the Extractor , but the why is what makes me scratching my head . Since I have a couple more 308AR's , I'm going to swap out & test these extractors in them & see how they work out in them .

Lab coat is a nice touch . LOL

There are tracked Wheel chair's ,that is out for sportsmen that need it for rough terrain . There are a bunch of different models available . I like how they have a winch on that Argo also , piece of mind .

I've never heard of any rifle that has had 30-40K shot out of it , shot any thing like that . Of course the early 1093's were only two grove rifling ,so who knows. I have heard of knives & Swords made from Meteors being superior , but metallurgy has only gotten better since then & from what I've ben told , what happens to man made metals through time is they start reverting back to base elements , which to me, is not good , as far as a Barrel is concerned . Saying that & I'm still shooting my 1903A3 & my M1 Garand LOL

LMAO

I was going to point out about that Video , I didn't see anyone clean or lubricate it during the shoot , but it could have been edited ,for all I know . but doubt it . direct |diˈrekt, dī-|adjective1 extending or moving from one place to another by the shortest way withoutchanging direction or stopping: there was no direct flight that day.• Astronomy & Astrology (of apparent planetary motion) proceeding from west to eastin accord with actual motion.2 without intervening factors or intermediaries: the complications are a direct result of bacteria spreading. ( impinge |imˈpinj|verb (impinges, impinging, impinged) [ no obj. ]have an effect or impact, esp. a negative one: Nora was determined that the tragedy wouldimpingeas little as possible onConstance's life.• advance over an area belonging to someone or something else; encroach: the siteimpinges ona greenbelt area.• (impinge on/upon) Physics strike: the gases impinge on the surface of the liquid.DERIVATIVESimpingement noun.impinger nounORIGIN mid 16th cent.: from Latin impingere ‘drive something in or at,’ fromin- ‘into’ + pangere ‘fix, drive.’ The word originally meant ‘thrust at forcibly,’then ‘come into forcible contact’; hence ‘encroach on’ (mid 18th cent). I think most don't think of a DI system as a Piston is that there is no direct force onto the Piston as with a forward mounted Piston assembly , not to mention its unconventional Piston system . Most see an internal combustion engine as being the bench mark of what a Piston system is . I see it like a Steam Reciprocating system, with steam piped to a valving system to actuate the piston to force it into motion . In the case of the DI AR rifle system the Steam is replaced with burnt Propellent gases. I have never seen a Piston system with the Cylinder that moves vs the Piston ( The Bolt Carrier or cylinder moves ) (since pistons in general have rings & reciprocate , that's what makes them a Piston ), but who am I to say . I believe the reason they called it a DI system instead of just a Piston system is the way the gas is transferred to the operating system , not that its not a piston system .

And what would be the benefits of a Barrel blank made in 1945 ? Just because it is ? Just curious .