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making a bear bag system


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  • #1259103
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    It was suggested when having my gear list critiqued, that my bear line and rock sack seemed heavy ( 4.50z) I am experimenting with making a light wt. version. I swapped out the solid nylon bag for a mesh one, smaller caribiner,and 50 ft of the type of line that contractors use to string off the foundation of houses etc. It seems pretty strong, nylon. It's exactly like what is on my Tarptent. Question…will this type of line hold up and support a 6-8 lb food bag?

    #1611146
    Steve .
    Member

    @pappekak

    Locale: Tralfamadore

    For a rock sack I use part of a nylon stocking and leave it long enough to tie around a loop in the rope.

    For a food sack I use a heavy plastic shopping bag.

    Ankle stocking (.2 oz)
    Wild Oats plastic bag (.5 oz)
    40 feet BPL AirCore Pro cord (1.2 oz)
    "Nite Ize S-Biner Size #2 (.25 oz)


    Total 2.15 oz

    #1611181
    Keith Selbo
    Spectator

    @herman666

    Locale: Northern Virginia

    Google the Klutz Book of Knots or find a knot website and learn how to reliably tie your line directly to a good heavy rock. No bag to carry or wear out.

    I used to use the rock sack. Trust me, this is less bother and you'll feel better about yourself in the bargain.

    #1611197
    Acronym Esq
    BPL Member

    @acronym-esq

    Locale: TX

    I would guess the 2mm braided nylon mason line has a working load of 10 kg and tensile strength of 100 kg (so it should work).

    I have some #48 braided nylon line called "catfish line" that is rated to 120 kg. I routinely hang/hoist 10-20 kg from it w/o any trouble.

    You could test your line by hanging a gallon milk jug full of water (should be about 8 lbs)…

    acronym 5/19/2010 10:23 AM

    #1611262
    Keith Selbo
    Spectator

    @herman666

    Locale: Northern Virginia

    The thinner the line, the deeper the cut in the branch. A slick polypropylene rope about 0.125 in. diameter is a good compromise between weight and thinness.

    #1611323
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    I did a test hang with the thin line and it nearly cut into my hands hoisting the sack. So maybe not. Found some light wt nylon cord lighter than what i had and a little thicker that worked better. The line is 41 ft long as opposed to the 50 ft line i usually used …should be okay.

    Like the idea of the stocking bag so will use that idea to cut weight. total wt of bear rope system 2.6 oz.

    #1611324
    Robert Blean
    BPL Member

    @blean

    Locale: San Jose -- too far from Sierras

    Like the idea of the stocking bag

    Just a question: is the stocking bag more susceptible to getting hung up on little roughnesses that somthing slick like a light nylon bag?

    –MV

    #1611328
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    Ummm…good question. Steve uses one, let's ask him. Steve? I'm guessing no more problem than a mesh bag….Maybe I could just use my Buff to wrap the rock in and tie it off like bag…Multifunctional?

    #1611341
    Acronym Esq
    BPL Member

    @acronym-esq

    Locale: TX

    > I did a test hang with the thin line and it nearly cut into my hands hoisting the sack

    I don't usually have that problem b/c I have someone push the bag up while I am hoisting. A stick can extend their assisting reach another couple feet.

    If for some reason I really wanted to yank the cord, wrapping it around a stick a couple times (or girth/clove/Siberian hitch) would make a nice handle.

    acronym 5/19/2010 3:22 PM

    #1611363
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    Good idea about making a handle. I think the thin line will hold fine for the one night I will need it. After our 1st night on the trail we will have to stay in the shelters and they all have bear cables. Trying to pack according to what I need specific to this trip and not "in general".

    #1611486
    Javan Dempsey
    Member

    @jdempsey

    Locale: The-Stateless-Society

    I seriously wouldn't use any type of mason's line, the diameter is too small not to a) cut branches, b) cut hands. It's also really stretchy, which is actually sort of a "feature" of the line..

    Been using this stuff extensively throughout my life for it's intended purpose, and while it works great for hammock whipping, or even a clothes line, I'd stick to something slippery, low stretch, and sturdy, for bear bagging.

    I recently posted trying to find something lighter than my 7/64th amsteel blue for bear bagging, which weighs around 2.5oz for 50ft. After reading the info out there, decided to stick with it.

    If I'm hiking for 7 days, I'd rather carry 7 days worth of food, instead of resupplying, so I prefer the performance that the Amsteel offers.

    #1611519
    William Puckett
    Member

    @beep

    Locale: Land of 11, 842 lakes

    Instead of Mason Line, try "Lash-It" or "Zing-It" line (in the 2 mm size) from Redden Marine. The Zing It has a slick coating on the outside to help reduce friction over tree limbs.

    #1611541
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    So many good suggestions! Any other thoughts on using the stocking as a rock bag?

    #1611544
    Travis Leanna
    BPL Member

    @t-l

    Locale: Wisconsin

    rhonda,
    Just a suggestion: AntiGravityGear's Treeline

    http://www.antigravitygear.com/antigravitygear-treeline-40-spectra-725-line.html

    1 ounce.

    #1611552
    Bob Gross
    BPL Member

    @b-g-2-2

    Locale: Silicon Valley

    The problem is that 40 feet may be too short. I've had lots where 50 feet was barely long enough. However, I have never seen one where 60 feet was not enough.

    –B.G.–

    #1611598
    Travis Leanna
    BPL Member

    @t-l

    Locale: Wisconsin

    I wonder if they'd give you a longer custom length if you asked for it? Probably for a bit more money as well.

    #1611632
    Keith Selbo
    Spectator

    @herman666

    Locale: Northern Virginia

    "So many good suggestions! Any other thoughts on using the stocking as a rock bag?"

    The lightest, most reliable bag is no bag at all. With practice, you can truss up a rock on the end of your rope and get a good hang every time. You'll be wondering why you ever bothered with the hassle and weight of a rock sack.

    #1611650
    Dale Wambaugh
    BPL Member

    @dwambaugh

    Locale: Pacific Northwest

    Learning to use line alone to tie up a small rock certainly makes sense. As far as a bag, a simple square of light cloth left over from a MYOG project or cut from worn out gear will do the trick.

    #1611676
    Paul Gibson
    Member

    @pgibson

    Locale: SW Idaho

    I sell a complete bear bag system or just the accessory pieces in a small kit. My 50' of 2mm throw line with spliced eye loops and spliced in-line rock sack with micro carabiner and micro cord lock for the rock sack weighs in at 1.5 oz

    http://arrowheadequipment.webs.com/apps/webstore/products/show/1471999

    Throw line with Rock Sack

    Cheers

    Paul
    Arrowhead Equipment

    #1611756
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    Perfect! Just ordered it.Good price too. Cased closed!

    #1611767
    Paul Gibson
    Member

    @pgibson

    Locale: SW Idaho

    It will ship out tomorrow. Thanks :)

    Paul
    Arrowhead Equipment

    #1611941
    Travis Leanna
    BPL Member

    @t-l

    Locale: Wisconsin

    Paul, I like the spliced line. Unfortunately, I don't need a bear rope!

    #1612325
    Stephen P
    Member

    @spavlock

    Locale: Mid-Atlantic

    what kind of cord is that? I'm just wondering what the difference is between the cord you use and spectra

    #1613430
    rhonda rouyer
    Member

    @rrouyer

    Locale: deep south

    Paul, got the bear line today. Awesome light! Thanks

    #1613438
    David Lutz
    Member

    @davidlutz

    Locale: Bay Area

    Got mine today too…..

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