"Boulder blaster" commercial or self made.

[Assembler]

Casting is kinda easy. Don't have the equipment though.

 

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[alloy_II]

Casting is kinda easy. Don't have the equipment though.

Make the pattern yourself then contact Jason from Mount Baker Mining and Metals, and have them cast your item at their foundry in Washington State.

Mount Baker Foundry

 

[Assembler]

Make the pattern yourself then contact Jason from Mount Baker Mining and Metals, and have them cast your item at their foundry in Washington State.

Mount Baker Foundry

That is a real good idea thanks for pointing this out.

 

[Assembler]

I still like the idea of machining short sleeves out of steel. The reason is boring long holes is more costly then short sleeves.

 

[Assembler]

The real total cost is in the machining and tooling thereof.

One can buy second hand metal castings that will aid in a steady rest with ball bearing rollers to assist in end boring of metal on the lathe.

 

[Assembler]

Got lucky and bought a sherline mill and mini lathe with a fair amount of tooling that will help things along for a song.

 

[TheMahoneyMine]

I made up a bunch of different electric cartridges to test for cave rescue stuff. I can confirm that pretty much any smokeless powder will break rock if confined.

What about Sierra Blaster?

 

[Assembler]

What about Sierra Blaster?

Some like the Sierra Blaster a lot.
Still I will give this small cannon a test.

 

[TheMahoneyMine]

Some like the Sierra Blaster a lot.
Still I will give this small cannon a test.

Let us know the outcome please!

 

[Assembler]

Let us know the outcome please!

I will. The process of machining is expensive as well as time consuming.