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About Lane

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  • Birthday April 23

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  • Gender
  • Location
    Upstate New York
  • Interests
    Machining, Building, Shooting, Reloading.

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  1. Thanks for the tips here. A few more things for me to consider... I've got the H-110 and H-4227 in stock already. Had been considering AA-1680 for a while but hadn't come across it at the local gun shops. That may change as one of my favorite shops is adding reloading supplies in addition to their standard offerings. Decided to double check those burn rate charts against reloading manuals; it does appear that using all four of those burn rate charts as comparison might be a bit sketchy. I went round robin and noted that 1680 should be basically the same as IMR 4198 (or H-4198), and CFE BLK is sequential with 1680 on one chart... But that's where it got dicey. Reloading data does not appear to prove out those comparisons at all. Especially so with heavy projectiles in the 300 Blackout load data. The most interesting thing was the pressure difference noted between CFE BLK and the 4198s, but there are likely other differences as well. Even IMR 4189 and H-4198 began to differ notably with the heaviest 300 Blackout projectiles (where they are quite similar is other loads). So; all in all, they make an interesting reference point, but can't be used for any kind of substitute comparison. Seems like every single one of those powders has unique properties in some way or another. Perhaps due to the bulk density that's not accounted for (among other things?)? I don't currently have anything chambered in 7.62x33; though, I have been considering my options for another build. I've been leaning towards an M1 Garand or 1903 Springfield, but I could be swayed yet. I had a good time finishing wood on a muzzle loader, so I'm looking for something a bit different. Still have an AR-15 ready to build minus a barrel, so I'm not running away. Better still; Armalite has upper receivers in stock again, so I can push on a 260 Remington build when I secure that funding. Attached are prints I found for the M1 Garand; they seem reasonably complete. I also found an entire book detailing the 1903 but it's a bit too large to attach here; not too hard to find at the open library. https://ia802205.us.archive.org/10/items/unitedstatesrifl00colvrich/unitedstatesrifl00colvrich.pdf Can't seem to find any prints freely available for the M1 Carbine, but the M14 is of course common as well. m1plans.pdf M_14_Receiver_Ordnance_Prints.pdf
  2. Been a long time since I posted here. Have not needed anything in the mean time; yet still working on these projects. There was a technical problem or two with the superior shot timer hardware. Don't want to bore the masses; but I wish to be able to steadily record a rather large window of gyroscope data. There is but one single trace missing between the Inertial Measurement Unit and the CPU in this circuit board, which makes it's a hair too slow for that real time operation (SPI vs. I2C). The IMU buffer compounded by the RTOS timing; even a dual core CPU mean that I can't seem to collect the necessary 4ms of data (even 2ms could work in a pinch) with enough accuracy to publish results. Could I fix this with a total re-wire? Yes. Could it be fixed in a software re-write? Maybe. Have I finished, or even started that process? No. Not at all. I am furthermore; still missing a functional (or tested) chronograph device to gauge projectile speeds. I've yet to see a single reading on my RCBS unit besides RCbS on the LCD, and a zero... What made me think to post again, is a number of powder comparison charts that I've recently come across. I had long wondered where CFE BLK fell, and it was actually listed here; where it's not available in QuickLOAD as a reference point. Chuck Hawks also comes through with a few standard comparisons in this regard as well: https://www.chuckhawks.com/powder_relative_burn_rate.htm Just finished the re-finishing of the wood stock on a muzzle loader build I started just about a year ago. (Different chart: http://www.curtrich.com/BPConversionSheet.htm) Figure it's time to get intimate with the volume vs. mass vs. burn rate vs. etc. among hand cast projectiles. Graphing all that barrel flex is still a goal in any barrel form; especially the 23.750" length barrel(s). As soon as I can certify any data points in a time window; I'll be glad to expound. Some black powder shooters want a projectile that always rocks at 100 grain charge (not 92, 93.5, or 95, etc.)? Besides all of that; actual work has had me up against the wall. I've switched gears a few times, and even made some homemade black powder the other day. Been working towards a few other new builds as well; albeit much more slowly than in the past. Burnrate_Chart_dt.pdf burnratecolor.pdf
  3. Weird; looks like I was able to save a previous message more than 24 hours? I thought I had posted an update; but it was here in the update window. Too many revisions to even consider posting the old update. BUT Had some further thoughts about why this 21.750" might matter. Given a 1:1 relationship with barrel profile (which I have in this case); it might amount to the amount of extra whip that a longer barrel adds. Go too short; and accuracy is sacrificed. Go too long; and the barrel harmonics might change in an unfavorable way. Has anyone ever handled 10' or 20' black pipe? It does not act nearly as rigidly as a 3' length... I won't be convinced until I see raw data myself. So; the Shilen #7-HV contour may indeed get worse beyond 21.750"? Unfortunately we have so many other barrel profile options; that I can't see sticking to that barrel length as a standard for any other reason. OBT theory suggests barrel length is irrelevant in any frame of reference (profile, caliber, cartridge, etc.). I'm not sure that's sound reasoning either. I'd be curious to hear any other opinions. Been trying to get the gyro data recordings up to speed; but nothing I've tried so far writes much faster than 1,000Hz to RAM. This is certainly a problem for the new hardware units coming in the mail. I'm going to need to work on a stripped down set of code and figure out why that's an issue. I've tried fiddling with every published register; yet nothing changes in terms of recorded samples. It is very strange that I'm recording duplicate samples though... So perhaps there is a way forward once I understand the constraints. That gyro is important because it gives me the ability to begin a field test. There are still a few things I absolutely need to see and test once I get up to speed. I'm thinking about a few options in terms of code profiling and debugging output. But I'm still not sure how to do any of that without breaking my existing run speed. Even dropping float math; those gryo numbers aren't any faster... Something is up here; just not sure what it is yet. I've always kind of despised timer interrupts because of the complexity; but that's probably the ONLY way forward. Still not sure if I have to turn back off the RTOS to make it work...
  4. They say the third time is the charm. I have updated this thread twice before with stamina. None of that information is included here. Apparently there is a different time zone at play in terms of the erasure of yesterday's composition. I'll try again with a rake and a spoon. Going to work on a metal case since those two parts (orange and white) have screws in the back. Still need to be able to record 32k raw gyro readings to SRAM; but the chip's ready (see the "noise" in that recording as "proof"). Has built in programmable LPF and HPF for a reason... Still broken on the programming of the microcontroller in this case. Rocked it all weekend with the same result. Purchased two more of these to make sure it gets done. Yeah; can't post this without any kind of explanation. So . noop. Pretty sure the earth is still spinning based on those gyro numbers...
  5. Looks like you are still missing the handguard / barrel nut too? What were you thinking for that part? I looked back; and had ordered a 12" but was sent a 15". Not sure what the weight difference was is in the end. I've long considered cutting it off neatly... I've got some 10" rails elsewhere that leave me plenty of room for my off hand. You went with that 18" barrel? I have one as well; if only for the legality in NY. I don't want to be caught with something that's a questionable 16" without a muzzle device. What were your plans for the business end? Grinding threads; or permanent fixture? Weighed out my builds yesterday; and my 308 was between 10.2 and 10.4 lbs. on the bathroom scale (not sure exactly how accurate it is with light objects) including the optic. Pretty sure the scope alone is a full pound which is a bit excessive for a hunting rifle (even with nice features). I wouldn't be surprised to see yours land under 9 lbs. with a light optic. Looks like a Titanium BCG could save you a mere six ounces? I'll be keeping an eye on this; really nice job so far...
  6. It turned out to be less than an overnight project to port over the bulk of the shot timer code base. First I needed to disable all the graphics routines; but the web interface has been working for almost a week now. It even uses the (new) built in digital microphone for the shot pickup. One of the last major hurdles is finishing the cold install of the file system. That is something that's been on my bug list for a long time... Making sure brand new hardware; upon uploading the firmware, creates and populates all the data files (or even second boot for that matter). Up until more recently I was working with 1-2 prototypes, so that didn't have to happen automatically. I always had to perform a list of tasks; scrolling certain menus, logging into the web interface, submitting forms, faking shots, pressing buttons in order; all that needs to be fixed. It's a pretty simple test though: "does new hardware detect empty or partial file system, and fix every error"? Many of the routines have a create new file failsafe already, they just needs to be condensed into a single logical process. Still struggling with the new graphics library, and how to make it update the display reliably without crashing the system, or ripping off other tasks (which usually causes crashes too). There doesn't appear to be any kind of page memory for this display; and I've long past broken the upper limit of drawing at the speed of the main loop. It was torture (twenty versions of torture), just to get a stable intro screen with animated sound waveform. That yellow slime is the animated audio waveform over a very long time (the intro screen typically only runs a few seconds; not half a day like it did there). I did forget to mention a few things in my previous rundown. This still needs a buzzer to be installed on one of the side cars. It also has a 240MHz clock which is double the original prototype's clock speed. Just this bare hardware is enough to perform all the functions required in one way or another. The buzzer and rotary encoder aren't required for operation or data collection (assuming an optical indicator instead of the buzzer is acceptable). Just today I hacked around the rotary encoder so I could control the menus with just the onboard buttons. One thing I'm still trying to wrap my head around; is how to collect the gyro data, and write it to a file without impeding shot timing function. It may not even be possible, but it's worth a try... Even if that doesn't work out; I can run the same code as a different function off the main menu to record the barrel movement.
  7. From the looks of the cutting tool in the Dremel chuck, it seems nearly impossible to have gotten the walls that straight or smooth (the chuck is about double the bit diameter, so it needs to be run at an angle). All I saw was him using a screwdriver with a hammer to remove chunks... Maybe it's a sharpened screwdriver? He would have been better off with a propane torch and a butter knife. Not even a rubber band around the jig? No way that doesn't end up with thin walls. The milling bit requires a drill press; why is that again? Also sounds like he successfully cross threaded buffer tubes on the V2. Based on this quote from his own YouTube comments; I suspect he will soon be in the hands of authorities: "I got 3 houses and a stash house I’m straight baby they gotta really do some searching"... He wants to build 25 more? So he needs almost ten per house?
  8. I've had the new shot timer hardware on my desk for a while now. I finally got around to combining/compiling a bunch of library example code to flesh out the necessary framework to port the old shot timer code over. This new hardware is actually cheaper; with a lot of extra features. While the old design had WiFi for configuration and data transfer, along with a single audio input; this new unit adds a host of new features without losing much at all. Shown here with a quarter for scale (it's quite small); it adds Bluetooth (still has WiFi), swaps the monochrome OLED for a built in color LCD display, internal LiPo battery, 6 axis IMU that supports 1000Hz accelerometer, and 32kHz gyroscope, real time clock, build in microphone with digital input, buttons, visible LED and IR, and the included case. The only thing it's missing is the rotary encoder for scrolling options; but that can be added to one of the plugs on either end, and still look relatively seamless. While it may not be immediately obvious; that's a set of stacked audio waveforms on the screen. I've gotten most of the basics up and running (web server, display routines, audio input). Porting the old shot timer code won't be an overnight job, but I can finally move forward with it as I have free time. It may even be able to replace the accelerometers (using the Gyros instead actually simplifies circuity) I was planning to use for measuring barrel movement. Having the mic (and additional ADCs on board) will allow me to directly correlate some of that data without other external hardware. Best part is; these can be had for a mere $10.99. I think it will benefit from a larger battery, second analog microphone (or two?), and it would be nice to have the rotary encoder for ease of use. All that should still come in well below $20 total. Here is a peek at 15 of the 16 pieces of brass I've fired through the pair of 300 Blackout builds (no idea how I lost one; going to have to look for that). These were from the sighting in a while back. It was a magazine loaded with two each of four different off the shelf loads, with ascending projectile weights. As I mentioned before; BOTH builds failed to close on the GO gauge, something I considered to be a fine in terms of long term use, as well as accuracy (though the accuracy claim may well be pure conjecture, just an assumption based on prior reading). I had no issues chambering any of these factory loads; and the bolts came very close to closing on the GO gauge. The only thing I noticed was a little bump on the shoulders which doesn't concern me much. I fully suspect the GO gauge will close well before I hit the hundred round mark on each. I've actually acquired some more factory load options since then; but want to wait for a functional chronograph setup before I continue any further testing. At this point I might as well wait until I can collect barrel movement data as well (since it may be much easier now). Not sure exactly when I'll get back to testing this, but I've got some interested parties locally that would like to participate; and hunting season is fast approaching. Still working to craft a complete methodology for this future testing, but have made significant progress already. I'll post that back here when I near a final product.
  9. Thank you for this Sir. I know how you feel; and I would never rifle carry in a Wal-Mart for Fun. We all need to hang on tight these days it seems...
  10. Welcome to the forum! Can't say as I can offer input myself either (No Timney here); but as @Armed Eye Doc said, others will be along to help soon enough. I certainly understand the desire to upgrade the trigger in a 308 AR. You really have an AR-10? Pretty sure a few pictures would spark them up (though I too would like to see it). The man is also right in asking "WHY" do you want this trigger? The use cases define what type of trigger you actually need.
  11. I did move to rural Florida myself. When I was there; it was gun friendly, and fun. I can say that my first epiphany in FL was that food was CHEAP. A whole shopping cart full cost less than a single weeks trip where I came from in NY.
  12. I did think about this quite a bit. What makes anyone move or stay? Usually the tides. Marriage, family, roots; we all care about America I think...
  13. I have thought a lot about this; I'm not exactly afraid to pick up and leave. Back in my younger years I kept so few possessions that I could move cross-country in a single vehicle (no trailer or U-haul). Unfortunately; I don't see that being a solution either. As some have pointed out; the disease is spreading... One thing I see in common across these gun restrictive states/counties/cities appears to be at least one very large city (a metropolis?). A city so large that it smells bad because of the garbage; crime rates disproportionately higher than the average per capita, and sometimes; the ability to control politics of a whole state. New York in particular is well known for high taxes; but also centuries of documented political corruption. What happens to any kind of animals confined in a space that is grossly over-populated? How do humans act/react when squeezed in with millions of others, into a tiny space? Higher population densities are naturally a magnet for criminal activities, quite simply put; it's easier to blend in (and there is more money in the pool). The one thing that never seems to sink in, is that criminals won't stop committing crimes because of more restrictive laws, or more strict penalties. Committing a crime is by nature, a risk that has a potential for life altering consequences. There are of course other problems; like the media goading people every time there is a news-worthly story about gun violence, but that's not going to stop either. One thing that make it slightly more tolerable as a NY resident; is that some of this has been going on a lot longer than I've been alive. It's easy to become numb to the BS, moving away does not resolve the problem (if others keep moving too)... In fact that might make it worse, as it could attract the influx even deeper into the heart of the US (where do you move when they take over Kansas, Iowa, Wyoming, etc.?). Restrictions on handguns have existed at a state level in NY for roughly a hundred years; so this type of government overreach (read: corruption) is nothing new. I was floored when I finally inspected the details behind the Sullivan Act; yet it's still on the books, and few care to challenge it. Another thing that gives me hope, is the numbers (the middle finger non-compliance rate). Here in NY we went through a shake down already. As of 2013 there were an estimated 1,000,000 assault-style weapons (and people were buying more in a frenzy; they certainly haven't stopped either). Less than 5% of those were ever registered with the state as such. That means greater than 95% are still in people's safes; presumably converted for compliance of course. The people that lived through the most recent shake down; are not likely to bend over a second time... Quite frankly; I would probably get myself a law degree (and fight) before considering another move again. I enjoy rural living, and nearly everyone within walking distance of this place has enough land for subsistence farming. My great grandparents farmed land very similar to this a hundred years ago; but my grandfather hated farm life, and ultimately moved to a more urban area. Then I grew up rural, and moved towards apartments in urban areas when I came of age. I even tried Florida; and the cycle continues. New York is a beautiful state; so long as one stays out of the "red" zones on this map (there are actually a few more now; but it's not horrible). I'm not sure what it would take; in terms of state laws to make me reconsider. I spent most of my life living without much security at all. When the SAFE Act was passed; I was apartment dwelling in an area with no open gun clubs nearby (all had been at capacity since 9/11). I was livid when the laws passed; but wasn't actively shooting because it was inconvenient. For now; fertile soil, productive fruit trees, and ample hunting grounds keep me mostly satisfied. To address this specifically... From what I understand, there is a 2020 ballot initiative in Florida to ban ALL semi-automatics (because it got enough signatures to support a vote?). https://ballotpedia.org/Florida_Ban_on_Semiautomatic_Rifles_and_Shotguns_Initiative_(2020) I personally don't see anywhere I would want to run toward at this point.
  14. I am in firm agreement about the actual legality of this matter. Unfortunately I think this would be a really twisted quest to undertake in real life. I don't want to insert feelings into the situation; but you better believe it's going to raise red flags to have a complete pile of pistol parts in a NYC airport, as a NY resident without a pistol permit? Check that in a standard locked case (as happens every day in the rest of the US); and you can easily expect charges will be filed regardless of the actual legal standing. One probably carried parts "to make said pistol" across /CITY/ lines into NYC which has its own laws. Even with a quality lawyer on retainer, you can expect to spend some time by yourself in a quiet room while the flight takes off. Furthermore; judges can play catch with a case like this until something happens. I'm not a lawyer. And I've not personally played these games in NYC airports. I am simply explaining how intense the scrutiny is (and has been for a long time); regardless of the actual law. I would personally not try this unless I had at least a month of free time to spare sitting in jail, with a lawyer working round the clock on my case. There is no Fisher Price argument in a situation like this (the components of a p80 kit look real and functional). Fail to produce the pistol permit? Even if you win the battle, you still lose the flight. Anyone want to test this scenario for fun? If I were not actively trying to get a pistol permit in upstate NY, I might consider it a bit more seriously... This may be foreign to the rest of the United States citizens at large; but the laws are not applied equally in New York. Corruption has been the cornerstone in NY for generations. This is the best possible scenario I've seen for this inquiry. Shipping to yourself at home; and repackaging to send to the hotel. Also; use a larger box than needed so the weight distribution is not abnormal. I would never consider carry on tools for this project. But they can be in checked baggage since there isn't anything else weird. If one is riding a motorcycle across four states; I assume there are other metal objects you'll want in that same checked baggage.
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