If you decide to follow this method, there is no guarantee you will get the same result, and I cannot guarantee the instructions here are flawless. I may have forgotten one minor detail that causes your project to collapse in flaming ruins.

I don't advise attempting this unless

• you know how to weld

• you've mixed concrete yourself before, properly and successfully

• you can cut steel plate with an angle grinder

• you can drill holes in steel

• you know the difference between a fender and spring washer

Work carefully, use appropriate protective gear when cutting , welding, etc. Don't expose yourself to paint fumes, etc.

If you injure yourself, get to a doctor.

Have fun. The better you load, the better you shoot.