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Thread: Need some outa'-the-box thinkers...

  1. #46
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    .51 cal

    Alinwa -

    Howdy, again !

    Another outside the box project, that featured their Mk 1 round; a .51" cal @ 1,250fps.... once up-to-speed. https://en.wikipedia.org/wiki/Gyrojet


    With regards,
    .357Mag

  2. #47
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    Quote Originally Posted by .357Mag View Post
    Alinwa -

    Howdy, again !

    Another outside the box project, that featured their Mk 1 round; a .51" cal @ 1,250fps.... once up-to-speed. https://en.wikipedia.org/wiki/Gyrojet


    With regards,
    .357Mag
    I remember the Gyrojet.....$15.00 a round back in the early 70's IIRC???? And couldn't hit the inside of a barn???

    The problem with these as with all multi-charge, base-bleed, multi-stage, RPG etc type systems is that they lack accuracy. And they're hideously expensive....We build fireworks here, my engineer son is quite the pyro...he's even working on a self-guiding system for pinpoint displays, but at $38.00/shot it ain't worth it to set up your typical 3-second Golden Shower.

    I want simple, conventional and proven tech. And cheap bullets.

  3. #48
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    Lee....it sounds like you're doing some of the same stuff. And what you find is, supersonic is EASY and PLEASANT because you've enough excess gas to brake the system.

    Now, on the subject of penetration, big and slow..... it's unbelievable.

    I've got a couple acres of lawn in front of my shop/range house. We shoot a lot of stuff right at the lawn. We set up plates and swingers, we have liddle competitons and we hold classes and sometimes we race cans. This last is simple. We paint two lines acros't the lawn maybe 50ft apart. Start with the cans/rubber targets/tennis balls etc set on the line closer to you and try knock your can over the second line before anyone else. There is only one rule, no shotguns allowed. But anything else goes. Sluggunss, 22's, 44Mag's, 45ACP, the little kids shoot Daisy Red Ryders and have an intermediate line to cross........

    My point is, I've seen the damage from a LOT of projectiles as they rip and pock the lawn. A 338 will drag up a fist-sized divot before it whines off into the mountainside...a 12ga saboted slug will sometimes tear a foot-long slot. But an 850gr lead slug at 900-1050 is just unstoppable.

    I built a little roll in the yard, an area that slopes down to a volleyball court. It starts about 50ft from the shooting area of the shop. Flat, flat, flat out to about 50ft then the ground rolls down about 18"-20" into the volleyball area... I set up my recoil sled about 10PM one night, on the shop floor, shooting out into the night. A couple times I thought I heard ricochets before hearing the slugs crashing thru the trees down by the crick. Didn't think anything of it.......

    Next morning headed for work my headlights swept the lawn and WHOAHHHH!!! "Looks like the moles attacked last nite!!!" I walked out into the lawn and there's 3"-6" deep furrows with the sod peeled open like you'd drug a plow thru. FURROWS 10-12ft long! Those biggie slugs were entering the lawn 10ft back on the flat, powering thru 10-12ft of sod and EXITING THE SLOPE to continue down into the trees unabated!

    Freaky....

    With my toe I rolled the sod back into the furrows and tamped it down. 3days later you couldn't see it.

  4. #49
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    I've just thought of something.....those 850gr 50cal slugs that burrowed and furrowed the lawn were wound up by a 7.5" twist. Recommended twist is something like 15" or 20"......they were revolving at near 78,000rpm's....

    I be betcha' that this is what kept them stable instead of them bouncing out the sod! I mentioned "I thought I heard ricochets" which is true....but they were not the typical VrrRMMMM!! just subtle flutter....

    Whatever it is, these pertickler slugs burrowed like linear gophers and came out on the same plane. And still made it to the treeline 180yds downrange with a crash and a bang...

  5. #50
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    base bleed

    Alinwa -

    Howdy !

    Please take as info only ...... " base bleed" tech for artillery rounds not same execution / result as " RPG " rounds.

    https://en.wikipedia.org/wiki/M864



    With regards,
    .357Mag

  6. #51
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    Quote Originally Posted by 404tbang View Post
    Al, this is a cool project! I think you juuuuuust might be having fun. I have to compliment you on your writing, you make it read like you're having a standard conversation and you seem to have mastered creative ways to write that make it feel almost like one is right there with you just listening along. You are a ton of fun on here, gotta be more so in real life. I've not read every post yet, gotta go to work in a few, but I think you need a good name for your creation. I nominate you call it the.........


    AlinWAMMMMM!!!!!

    Take care,

    Greg
    Why thank you Greg I'm glad you're enjoying my musings...

    I'll put AlinWAMMMM!!! on my list alongside "Sussurus" and "Airborne Pathogen" and "Covert Interdiction" and "Butterfly Stomp"......or, from My Jackpine Savage friends...."beerfart" (SBD).....LOL.....yeahh, I'm having fun with it.

  7. #52
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    Quote Originally Posted by alinwa View Post
    Yup....that's the thing. They are wikkid easy in those big clunky two-handed two-ton tacticool setups but that's just not my deal. You cut the weight in half and the paradigm shiffftssss

    Even at 13lb they're not bad (physics) but you get 'er down under 10lb and look out...(again, physics LOL) more weight=less felt recoil EVERY time....

    The funny thing is, the typical tacticool weight for 50BMG's is 26-28lb......I've fired 13lb 50BMG's that kick LESS than that. It's all in the brake and making it do it's thing.
    BTW here's another video I found off yours. I'm guessing with that fat barrel it's weighing 13-15lb ....this looks to be kicking a little more like mine do LOL....he's making it look like he's enjoying it....



    https://www.youtube.com/watch?v=jxFpah2X678

  8. #53
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    Alinwa -

    Howdy!


    I very much enjoy reading your post, also ! Lively & informative !



    With regards,
    .357Mag

  9. #54
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    After reading and relating as best I can to this thread, I feel more comfortable inside my box.

    You guys keep it up. I am enjoying the discussion from my box.

    Concho Bill

  10. #55
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    I am liking it also, but what's not to love about inventing some thing new and the experimentation that goes with it!!!!! Any chance we could see a picture of this beast?

  11. #56
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    Quote Originally Posted by ebb View Post
    I am liking it also, but what's not to love about inventing some thing new and the experimentation that goes with it!!!!! Any chance we could see a picture of this beast?
    pix of the round(s) on page 1, and of the brake. At this point my test-mule guns are just a Sav 110-ish thing, a Wby chassis and a Rem700 all with aluminum slideplates. I guess I've also screwed a bbl onto one of my TAC338's and tested a bunch of 338L based rds (kindofa' 510 Whisper type thang but I can't say that name or use a Whisper reamer without paying royalties....so I don't) I won't put together a real one until I've gotten the feel I want.

    And I won't do a Whisper.

    And since't I don't want to pay Rick Jamison I won't use the WSM-based one neither LOL....

    It's the principle, not the money y'see.....

  12. #57
    Join Date
    Jul 2007
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    101

    50-338 Norma

    [QUOTE=alinwa;789752]pix of the round(s) on page 1, and of the brake. At this point my test-mule guns are just a Sav 110-ish thing, a Wby chassis and a Rem700 all with aluminum slideplates. I guess I've also screwed a bbl onto one of my TAC338's and tested a bunch of 338L based rds (kindofa' 510 Whisper type thang but I can't say that name or use a Whisper reamer without paying royalties....so I don't) I won't put together a real one until I've gotten the feel I want.

    And I won't do a Whisper.

    And since't I don't want to pay Rick Jamison I won't use the WSM-based one neither LOL....

    I am working on a rifle now based on a 338 norma case. Cut the cases at 1.860" and neck them to hold .510 bullets. Still working out some kinks with loading dies but I should be set soon. Planning to shoot cast bullets 550 - 875 grains. Used an 8 twist bbl to stabilize 750 gr jacketed bullets at 1000fps if I decide to go that route

  13. #58
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    [QUOTE=colchester;789762]
    Quote Originally Posted by alinwa View Post
    pix of the round(s) on page 1, and of the brake. At this point my test-mule guns are just a Sav 110-ish thing, a Wby chassis and a Rem700 all with aluminum slideplates. I guess I've also screwed a bbl onto one of my TAC338's and tested a bunch of 338L based rds (kindofa' 510 Whisper type thang but I can't say that name or use a Whisper reamer without paying royalties....so I don't) I won't put together a real one until I've gotten the feel I want.

    And I won't do a Whisper.

    And since't I don't want to pay Rick Jamison I won't use the WSM-based one neither LOL....

    I am working on a rifle now based on a 338 norma case. Cut the cases at 1.860" and neck them to hold .510 bullets. Still working out some kinks with loading dies but I should be set soon. Planning to shoot cast bullets 550 - 875 grains. Used an 8 twist bbl to stabilize 750 gr jacketed bullets at 1000fps if I decide to go that route
    Just a perspective on reloading dies from a complete die freak.......I still don't have any dies and don't know if I'll ever get any. If the cases are virtually straight taper (mine ARE straight taper....no body nor neck taper at all) and you've a formed shoulder in the brass then the only thing you have to size is the neck....to hold a bullet.

    First of all, part and parcel of my setups are turned necks and straight tapers to maximize the amount of shoulder I can mfgr in the brass case.

    I made a die on the lathe which resizes the neck a couple thou.....I can vary neck thickness to vary neck tension and I've fired some of these cases 20 times up to a velocity of about 1500 max, most at 1000-1050 and found no need to resize the bodies.

    I've been seating using some oddball 50cal die from my drawer....could be a Beowulf or a 50 Sharps or a 50AE I can't remember...just something to push the bullet in.

    Anyway, no need for much in the way of dies IMO

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