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Bushworked711

@ Bushworked711 @forum.guncadindex.com

Posts
3
Comments
13
Joined
3 mo. ago

  • I suck at CAD but this may be dope!

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  • There are people that print/make the whole gun (including things like rifled barrels). These are generally called "DIY" builds.

    There are also builds that use parts from existing platforms, such as macs, AR, Glock, etc.

    Many "hybrid" designs exist as well, that might use some gun parts and the rest is home made.

    There are also a ton of furniture, accessories, and modifications for existing platforms.

    But yeah we print/make pretty much anything you could think of. I personally like builds that I can completely DIY and 3d printed ammo.

  • Modelo Poly 43R Prep/Reloading Help

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  • 357 is not going to fare well long term with the current design. Everything should be good to go for 38 special, even using +P loads.

    I have a couple of ideas to reinforce the action, but printing the hammer and breech in CF nylon may be all it takes. I will get around to it eventually.

    As expected, the optional steel safety plates do not reinforce the action. I have tried them on the 327 with no change in results.

  • Modelo Poly 43R Prep/Reloading Help

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  • 38 special is going well. The armorer is testing it and hasn't really had any problems. 327 magnum has proven to be a handful. I don't regret choosing the 327 fed chamber, but likely we will recommend people go with the 32 h&r magnum chamber in stead. 32 h&r still used magnum powders, so you can really utilize the rifle length barrels. It is a very capable round, and the slight shorter chamber will play nicer with 32 long, 32 short, and 32 auto. I really like shooting the 32 longs out of mine more than anything. No problems other than the hotter 327 loads hurting the brass. The gun holds fine but the brass is wrecked with the hotter 327 loads.

  • Modelo Poly 43R Prep/Reloading Help

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  • So, you seem like you are in the right track.

    Use a 1/4" drill bit as a mandrel to hold the beginner shells for sanding.

    For intermediate (or any upcoming load that uses small primers) you use a T25 Torx bit as the mandrel. I recommend a new one with crisp edges. You can also use the torx bit after smoothing the cases to ream out the primer pocket to size.

    The beginner loads use a 209 primer. The 209 primers protrude out the back of the case because of the incorporated rim/flange. This makes up for the difference in headspace.

    The headspace gauge is .2mm thicker than the shells (or beginner rim+209 flange thickness). This build with 43r Ammo is very forgiving with headspace. If you accidently used a beginner shell to headspace, you can just file some off of the breech end of the barrel, and file the extractor groove a little deeper. If you mess up and have too much headspace, you can sand some off of the front of the receiver to make up for it.

  • Show Off Your Builds @forum.guncadindex.com
    Bushworked711

    Range day with BLC compacts.

    Went out to the range and knew that I probably wouldn't have much time, so I brought a new 10/22 build to test, my box of compact DIY builds. My brother and I had a blast shooting these dinky little guns. We burned through a couple hundred rounds in the 10/22 in no time, but a couple hundred rounds of 22 through these single shots kept us busy for about 2 hours.

    Just talking crap and shooting 20-40 feet.

    They ones with 4-4.5" barrels are pretty darn accurate for what they are.

    All of the builds pictured have at least a couple hundred rounds on them. They all will run whatever 22lr you put in them safely, even stingers.

    These simple DIY builds are all about fundamentals. Yeah, they are pretty much range toys. But it is satisfying to build these things and get them to function perfectly and be pretty long lasting.

  • Idle talks about primers.

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  • The printed ammo guys were doing this exact thing right before I got in on the action. I don't have the files or process, but they were able to get useable results with printed cartridges. AFAIK, the two working on printed primers are no longer around.

  • Can not quiet enough on 22lR - alternatives?

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  • Baby barret is one of my favorite builds I've done. I recommend opting for a full size barrel. It's also one of my most accurate full DIY builds.

    CCI standard velocity is subsonic as well.

  • Can not quiet enough on 22lR - alternatives?

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  • Barrel length also plays a large role in how quiet a gun can be. My baby barret, m4gery, and sr722 all have barrels longer than 21" and are very tolerable with standard velocity ammo without using a can.

    On the other hand, my 22lr builds with 1.5-4" barrels are some of the loudest pistols I've fired.

    CCI quiet "semi auto" ammo helps a ton too, even with the shorter barrels. Aguilla sniper subsonic is really nice just harder to find and some guns don't cycle it well.

  • Yet another printed ammo. (fossa-9PAK-R)

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  • I see your problem now. If you are only using these for blanks, with primer only, you could probably use a more rigid material such as PETG. Although something such as PA-CF or PLA-CF might do the trick, I would avoid filled materials because they are abrasive. I have had similar thoughts about adding a steel pin for the anvil in other projects, but since I have started using the primer bar, I have had no reliability issues. This won't work for your situation though. The steel pin will be the way to go. You just have to make Sure that it stays in place so that it doesn't become a projectile and damage something.

    Those 43R variants are just the initial release. There will be many, many more to come. These include precision oriented slugs, shotshell optimized for alternative payloads, signals, and magnum loads.

    I also have another 3d printed caliber like 43R (chamberless smoothbore using off the shelf pipe) for small platforms called 33R. Same concept, just 33 caliber instead of 43 caliber. It hasn't been released yet. It is intended for a harlot based platform, and the smaller shells work just as well. I don't think you could reliably make ammo much smaller than a straight walled 32 caliber round, you just don't have enough material around the primer pocket.

    Pretty much all of my printed ammo projects are based on Deep style printed ammo. If you want a bit more information, "The 9mm Deep" has great documentation about this ammo type. It has been out for a while and tested by quite a few people.

  • Yet another printed ammo. (fossa-9PAK-R)

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  • Cool stuff. I'm sure that a 209 primer alone is sufficient for these.

    As far as the anvil goes for the bernand primers go, check out the 43R intermediate rounds. They have a "bar" that the anvil of a boxer primers seats against. As is, the design wouldn't work with bernand primers, but making the bar a point downwards would probably do the trick.

  • General Discussion @forum.guncadindex.com
    Bushworked711

    Esun matte PLA test

    I recently ordered some Morandi green esun matte PLA for something not related to guns. I noticed that it seemed to have some really nice mechanical properties. It had to be printed at higher temps than most PLA variants that I've used as well. Skirts and purge lines coming off of a 60C bed were rigid, which leads me to believe that it will be pretty good even when it warms up a little.

    So, I fired up the ender 3, and wanted to see what this material would do. This is just a variant of the artillery boi that is easy to make UFA compliant. It's sporting a 4.5" barrel, using a solid printed breech, and had the striker fired FCG. The green parts are the matte pla, the sear is also matte pla. Just used black on the non structural parts for looks.

    It does seem a bit too flexible. I managed to rupture a couple cases using high velocity ammo. My action could be a little tighter, but that probably wouldn't keep it from rupturing a case every now and then. Fired standard velocity and shorts

  • 43R precision load

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  • You need to print the ammo better if you are shearing the rims.

    Make sure that you are using a quality pla+, that has been dried. Print hot and very slow. I recommend the bed being at 70C.

    You will never shear a rim with the firing pin strike if you print the ammo well with quality material.

  • Reloading Ammo @forum.guncadindex.com
    Bushworked711

    43R precision load

    Saboted 00 buck traveling 1400-1500 fps. Sabot is non-discarding.

    They are stable to at least 100 feet at this velocity, I will test at farther ranges next time I go out to the farm. I hit a 4" group at about 90 feet with iron sights (I'm not very good), but I'm sure that I can do much better. These will have a wack BC, so I'm not too sure their effective range.

    These are a new 43R (printed caliber) load meant for accuracy. Not too bad for home made cartridges fired out of an unchambered piece of pipe.

    I have a new set of 43R loads that i've been working on. I will release these "bonus rounds" when I see more 43R builds come to life.

  • Removed

    création du NOT-A-GLOCK

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  • Probably the SY22. I've never built one, but many have with success. The NULL is supposed to be an improvement over the NAG, but I have yet to try one of those either.

  • Removed

    création du NOT-A-GLOCK

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  • It Is known to be an unfinished model. Although it contains some very intuitive design features, there are too many flaws to be worked out as it is.

    I'm not saying that it's impossible to get one working, but it's not going to be a fun time, and will require overhauling many of the models.