19 FPE With Flymars A Hunting Slingshot Rifle.

Discussion in 'General Slingshot Discussions' started by P.Konrad, Jul 15, 2020.

  1. P.Konrad

    P.Konrad New Member

    10
    5
    3
    Posted for the benefit of anyone interest in the Flymars A Hunting Slingshot Rifle.

    I made up a band set 50 to 20mm tapper, double bands. 1mm Sheshou guru and 0.65mm Therband gold and it shot a 93.4m/s (306.43fps) (19fpe) 19 foot pounds. This is a much better result.

    So here are the results so far.

    1) Sheshou guru 1mm 50 to 20mm tapper. 5:2 ratio
    • 8mm steel 50/20mm tapper (113.2m/s) (371fps) 2.09 grams (32.27 grains)
    • 8mm lead 50/20mm tapper (106.8m/s) (350fps) 3.04 grams (46.92 grains)
    • 10mm lead 50/20mm tapper (74m/s) (242fps) 5.94 grams (91.63 grains)
    2) Sheshou guru 1mm 50 to 12mm tapper. 4.2:1 ratio
    • 8mm steel 50/12mm tapper (110.0m/s) (360fps) 2.09 grams (32.27 grains)
    • 8mm lead 50/12mm tapper (101.3m/s) (331fps) 3.04 grams (46.92 grains)
    • I didn't bother with the 10mm lead I guessed it would be under 70/ms
    3) Sheshou guru 1mm + 0.65 Theraband gold 50 to 20mm tapper. 5:2 ratio (1.65mm of latex) arround 50lb's of draw force, see video below.
    • 8mm steel 50/20mm tapper (104.0m/s) (342fps) 2.09 grams (32.27 grains)
    • 8mm lead 50/20mm tapper (100.5m/s) (329fps) 3.04 grams (46.92 grains)
    • 10mm lead 50/20mm tapper (93.4m/s) (306fps) 5.94 grams (91.63 grains)
    So it seems the way to increase the effectiveness of the rifle is to go up in rubber and caliber not to try to get speed with a small projectile.

    The inspiration for this was Jeorg Sprave's Sling-X-Bow with triple theraband gold bands (0.65x3=1.95mm). I am very happy about that. It looks like I might have nearly found the optimum performance for the Flymars A Hunting Slingshot Rifle.



    http://www.ctmuzzleloaders.com/ctml_experiments/rbballistics/rbballistics.html

    A GZK MAD6 pouch die was used with GZK QINGYAO POUCH MATERIAL 1.8MM SCALY SUPER FIBER LEATHER, with Double sided laminated pouches. Thin strips of theraband gold used for tying in with wrap and tuck tying in method.

    Sorry I don't have a means to Video record at the moment. I don't want to waste your time with lies, I post for my benefit also in case I lose my records in the future.
    A link to pictures of the rifle: https://www.theslingshotforum.com/t...hunting-slingshot-rifle-with-12mm-lead.43395/

    Any observations and comments of a constructive manner are very welcome.
    Salutations to all
     
    Last edited: Jul 15, 2020