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Message started by tom2189 on Nov 17th, 2019 at 5:10am

Title: Concrete\cement balls
Post by tom2189 on Nov 17th, 2019 at 5:10am
Hello everyone. I saw somewhere a guide how to make an ammo for sling with cement but i cant find it. Maybe you have an ideas how to make it? What proportion do i need to use?

Title: Re: Concrete\cement balls
Post by Sarosh on Nov 17th, 2019 at 9:40am
I've uploaded 2 videos making and testing concrete sling ammo.

https://www.youtube.com/watch?v=h5dHUZ_TCTk
https://www.youtube.com/watch?v=YRUpBPRkItI

the cement bag should write on it a recommended ratio.
1:5  cement : sand  is a good way to start
use very little water and add slowly be careful too much and the concrete will be runny and won't stay in shape.

use plastic gloves for shaping , dust mask and a drill mixer for faster mixing.
use a bowl or a cap so that you make ammo consistent in mass. hand shaping is the fastest way to do it.
try to make concrete for 70 projectiles or less , more than that and you get tired and sore upper back.

other how to's from slinging.org :
https://web.archive.org/web/20120804011714/http://slinging.org/index.php?page=fifty-second-bullets---mark-findlay
https://web.archive.org/web/20120804011820/http://slinging.org/index.php?page=concrete-easter-eggs-look-out-below---nick-martin


Title: Re: Concrete\cement balls
Post by NooneOfConsequence on Nov 17th, 2019 at 2:42pm
Nicely done!
Was the ammo worth the effort?

Here’s a good primer on how your mix ratios affect the strength of the end product:
https://youtu.be/UOHURuAf5iY

Title: Re: Concrete\cement balls
Post by Jaegoor on Nov 18th, 2019 at 1:49am
https://youtu.be/ExE_y1fro6A

😁

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