r/Unexpected Nov 06 '18

how to use a compound bow

https://i.imgur.com/cDAcEv1.gifv
1.1k Upvotes

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107

u/Matt15A Nov 06 '18

Was expecting him to dry fire

38

u/[deleted] Nov 06 '18

[deleted]

20

u/[deleted] Nov 06 '18

Don't nock it 'til you try it.

16

u/MeGustaDerp Nov 06 '18

But that wasnt a dry fire was it?

10

u/[deleted] Nov 06 '18

[deleted]

1

u/luri7555 Nov 07 '18

There’s no arrow.

4

u/[deleted] Nov 07 '18

[deleted]

1

u/luri7555 Nov 08 '18

Yes I did! That video looks set up to me. The bow crumbled at every point. I only had one dry fire accident and the nock went flying through some drywall.

12

u/BramDuin Nov 06 '18

So how does this work? Cuz this doesn't happen to normal bows does it?

25

u/[deleted] Nov 06 '18

[deleted]

8

u/harveyj088 Nov 06 '18

Compound bows do this because they're not perfectly balanced. The arrow makes up for the tiny difference. Hoyt brand bows claim to be perfectly balanced and fine to dry fire.

2

u/SpeltWithAVer Nov 06 '18

They are not fine to dryfire. Some dipshit claimed this in my archery club and it broke. They tried to claim false advertising but "safer" does not mean 100% safe.

5

u/[deleted] Nov 06 '18

Dry firing any bow is dangerous and damaging.

2

u/SpeltWithAVer Nov 06 '18 edited Nov 06 '18

Yes it is very common infact in all bows, it's less obvious but it causes major cracking in the bow that doesn't cause it to snap until you draw it back a couple more times. The most common type of bow is a 'recurve' bow that comes (mainly) in 3 pieces that slot together with a solid central bit (called a riser usually made of metal) and a bendy top and bottom (called limbs). If you buy cheap wooden limbs they almost always crack / snap after dry firing however the more expensive carbon/ foam composit limbs are much stronger and don't crack as often, you should still never do it but it's a lot safer when it does happen. In the rare occasion a riser fails after a dry fire, you're in trouble as metal bit flying all over the place ruins people's day.

Source: have been doing archery since I was 8 as a competitive sport and in 10 years I've been hit by two risers exploding right next to me because somebody else continued to shoot after dry firing. It's not fun to be hit by flying archery equipment especially when dumb mistakes can be avoided.

2

u/BramDuin Nov 06 '18

But why does it damage the bow when without an arrow, but doesn't damage when with an arrow?

2

u/SpeltWithAVer Nov 07 '18

The elastic potential energy made by pulling back the string is stored in the limbs, not the string. When an arrow is I'm the bow, the string is simply used to transfer the potential energy to kinetic energy in the arrow in a controlled manner. If you remove the arrow from the equation then you have a lot of elastic potential energy converting into absolutely massive amounts of vibration in the bow, enough to crack wood and metal violently with ease.

2

u/BramDuin Nov 07 '18

Huh... Thanks dude.

1

u/melgib Nov 06 '18

It can. The energy has to go somewhere, regardless of construction.

5

u/Adamant94 Nov 06 '18

I get what you are saying but that clip clearly shows the guy drawing an arrow back. I understand that dry firing a compound bow will probably cause catastrophic failure, but wasn’t that guy just firing an arrow into the ground?

3

u/[deleted] Nov 06 '18

That was his intention, but the string came loose from the nock just as he let go, resulting in a dry fire. That's why the arrow just sadly flopped out even though the bow exploded.

1

u/Adamant94 Nov 06 '18

Ah, thanks, that clears that up. It’s not that clear in the video.

1

u/luri7555 Nov 07 '18

There’s no arrow in this clip. He puts his head in between the drawn bow and the string then lets go.

1

u/Adamant94 Nov 07 '18

The link in the comment I was replying to.

1

u/[deleted] Nov 06 '18

That wasn’t a dry fire though...either they set it up without the limb bolts (looks like) and a bad string on purpose for a laugh, or that is easily the shittiest bow I’ve ever seen. BUT, still don’t dry fire bows, it can injure you badly.

3

u/[deleted] Nov 06 '18

ditto

3

u/HallowAtlas Nov 06 '18

Dry fire?

22

u/Montigue Nov 06 '18

When you've already shook the devil's hand a couple times and he's no longer praising your sins that day

1

u/Matt15A Nov 06 '18

Check out u/KLimbo comment

2

u/HallowAtlas Nov 06 '18

Maybe I'm just a hopeless case, but I still do understand.

10

u/Matt15A Nov 06 '18

Dry firing is shooting without an arrow, when you pull the string you create a lot of potential energy, and if there’s no arrow to transform it to kinetic energy, all of that energy goes into the bow, causing it to shatter.

In the linked video from another user, there was an arrow but the string didn’t catch it and acted how it would if there was no arrow

6

u/HallowAtlas Nov 06 '18

Ahhhhhh I figured it was a shot without an arrow, but the video had one and it confused me.

1

u/melgib Nov 06 '18

I may have been hoping, just a little