The Slingshot Forums banner

Do you think it could get faster with Theraband Black/Blue, (other)?

  • no

    Votes: 0 0.0%
  • maybe

    Votes: 0 0.0%
1 - 5 of 5 Posts

·
Registered
Joined
·
19 Posts
Discussion Starter · #1 ·
Hello all,

I have posted this on another slingshot forum but I would like to pose the question here also.

I have a question about Joerg Sprave's band calculator and finding the optimum bands and dimension.

The stock band's on my sling rifle are: 50mm tappered to 20mm with a 160mm active band length, 700mm draw. Factory claims 109mps (357.612 fps) 6mm steel.

An example of Joerg Sprave's calulations states as follows:

What is your draw length in cm? 70

How far do you want to stretch the bands? Maximum

How much tapering do you want? Maximum

What is the diameter of your ammo in mm? 12

Material please Lead

Your ammo weighs 10.22 gramms.

Cut the bands 15.77 cm long.

Band width at the fork is 2.83 cm.

Band width at the pouch is 1.13 cm.

You need 2 bands per side. Theraband Gold.

Do you think I could get faster with Theraband Black/Blue x3 per side like Torsten does?

What could help me get the maximum speed possible (band wise)?
I can't change the draw length, I will buy Kangaroo leather later.

Band life is not a concern. I am waiting for my Chronograph.
My rig.





Any suggestions, answers and constructive input is very welcome. Answers I have obtained elsewhere are to stick to Joerg's calculations and tinker with the rifle. Kindest Regards PK.
 

·
Registered
Joined
·
19 Posts
Discussion Starter · #2 · (Edited)
I put one shot thru the chrony, not a comprehensive test but it was 117.5m/s (385fps) 8mm steel. Comprehensive testing to come. Looks good.

Testing 8mm lead 500mm from the Chrony,

1) 111.8 m/s (366.79fps)

2)110.8 m/s (363.51fps)

3)111.0 m/s (364.17fps)

4)110.8 m/s (363.51fps)

I am very please with that. Cheers PK.
 

·
Registered
Joined
·
36 Posts
Hey man! Just wanted to say thanks for posting about the Flymars. I was looking for reviews that aren't BestToy videos (they're fun videos, but it's not really testing, and their specs aren't standardized). Do you still use it and do you still like it? I saw in your other post about achieving 19 fpe that you had a 50 lb draw weight on it. How did the rods handle the load? I see they also sell much more expensive versions of the Flymars with 12mm rods, so I can imagine it's possible to use really high draw weights on them. Also, speaking of draw weights, is the trigger pull affected by the draw weight much?
 

·
Registered
Joined
·
19 Posts
Discussion Starter · #4 ·
jonathanfv
Hey man! Just wanted to say thanks for posting about the Flymars. I was looking for reviews that aren't BestToy videos (they're fun videos, but it's not really testing, and their specs aren't standardized). Do you still use it and do you still like it? I saw in your other post about achieving 19 fpe that you had a 50 lb draw weight on it. How did the rods handle the load? I see they also sell much more expensive versions of the Flymars with 12mm rods, so I can imagine it's possible to use really high draw weights on them. Also, speaking of draw weights, is the trigger pull affected by the draw weight much?
, I am really sorry about the late reply. I still have it.. It can handle it but it does get a intimidating, all that energy. I was pushing my luck. A college of mine got over 20fpe with a home made rifle, his draw length is about 100mm longer though. Draw weight does effect the trigger, harder to pull.
Regards PK.
 

·
Registered
Joined
·
36 Posts
jonathanfv

, I am really sorry about the late reply. I still have it.. It can handle it but it does get a intimidating, all that energy. I was pushing my luck. A college of mine got over 20fpe with a home made rifle, his draw length is about 100mm longer though. Draw weight does effect the trigger, harder to pull.
Regards PK.
Makes sense. Thanks Konrad! Stay safe!
 
1 - 5 of 5 Posts
Top