Thread: Another Trip to the Range

Originally Posted by Oldbloke

Yes, words fail me too.

This type of burn test is similar to how its done in the industry.

Secondly, it was never put that it was in any way conclusive.

And was followed up with a sensible/conservative test load.(s)

And the powder was in the original tin. So the source was known. Storage conditions are unknown but no rust in container no clumping no dodgy smells, looks perfect.

GPM pray, tell me, how does the industry test burn speeds of batches of powder GPM. Educate me.
What is the industry procedure?

Greetings,
I believe the test may be what has been called the closed bomb test or something similar developed from it. In this a small sample of powder is burned in a closed container and time and pressure measured electronically. This would give a rough guide on burning speed. The manufacturers are not working with an unknown powder but huge lots of the same powder. The lots are then blended to even out slight speed changes for canister grades. I believe that the charge may be adjusted rather than blending for commercial ammo production. The problem with part tins of powder is that once the seal is broken we don't really know what it is.
Regards Grandpamac.