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Discussion Starter · #1 ·
Signs you're a parent: The kids are at grandma's on a Friday night and you're sitting at home tinkering with slingshots and watching YouTube videos....of slingshot stuff.

But these numbers weren't going to write themselves down! I measured these bands at 21mm at the slot and 11mm at about 15mm from the pouch tie, 147mm active length. Draw length is somewhere around 31" to 32" with this frame and I'm using a 2"x0.5" microfiber pouch.

First up were the wheel bearings that are actually a touch under 12mm weighing 106 grains. I only shot the ones that were 106.0 for this string. I felt like my posture needed correcting after the 8th shot and the last two shots gained a few fps. All shots were held for about three seconds.

204.7
202.5
204.5
200.5
203.5
205.3
202.6
202.5
207
208.2

Average - 204.13 fps

Then the 7/16" steel weight sorted for 86.5 grains. Same deal as before, held for three seconds.

216.7
225.5
227.3
222.5
222.5
224.1
216.3
226.2
223.6
222.7

Average - 222.47 fps

And truth be told, I only have one 3/8" steel ball that I can find so I was shooting 00 buckshot weight sorted for 53.1 to 53.2 grains.

267.7
268.6
261.6
269.7
265.9
268.7
266.4
262
267
265.2

Average - 266.28 fps

That's all for now. In the next few days I'll cut a set closer to 5x stretch and retry, also with a more gradual taper. These bands were made to use up a strip I cut off the roll too short but even so the draw weight was noticeably less than the 1842 loops that give me slower speeds than recorded here even at a similar elongation.

If anyone considering an order of this thickness would like to suggest a taper I record the results of feel free to ask, especially if you're a hunter. We can't hunt with slings here but I also have several high powered air rifles I mainly use for target shooting because why not send that little plastic army man flying as far as possible from 40 yards?
 

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I know from the feel that Sumeike is fast, but waiting for my first chrony so didn't know how fast. Thanks for posting, much appreciated
 

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Discussion Starter · #4 ·
I'll have to make a bigger pouch to try wider bands on my maple frame and see about getting these 106 grainers into the 220's. This pinch gripper only has 22mm forks but it's becoming so easy to be accurate with it wouldn't really matter anyway
 
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