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OK, now I get where you are coming from. Thank you.
Yes, I'm aware that with too small of a charge of smokeless powder in a cartridge case, the powder burns so quickly it seems to detonate rather than deflagrate (burn). However, leaving aside smokeless is a different powder requiring a higher temperature to deflagrate, that is still inside an enclosed cartridge case with very limited space where the oxygen is in a small container (besides what is chemically stored as part of the powder). Therefore the primer flame bounces inside the enclosed cartridge case.
We aren't talking about a small enclosed space inside even a flintlock bore that is coated with fired black powder residue. There is still a large open hole that does not contain the gas pressure, as it would when there is a projectile or barrel obstruction (or inside a cartridge case). Unless the loose powder is very near the breech, that means the only way powder further up the bore is going to be burned is when the hot gas reaches it and ignites it. That means there will be a slower time of total deflagration and therefore lower pressure than had all the loose powder been down at the breech.
Thank you for the discussion.
Gus
Yes, I'm aware that with too small of a charge of smokeless powder in a cartridge case, the powder burns so quickly it seems to detonate rather than deflagrate (burn). However, leaving aside smokeless is a different powder requiring a higher temperature to deflagrate, that is still inside an enclosed cartridge case with very limited space where the oxygen is in a small container (besides what is chemically stored as part of the powder). Therefore the primer flame bounces inside the enclosed cartridge case.
We aren't talking about a small enclosed space inside even a flintlock bore that is coated with fired black powder residue. There is still a large open hole that does not contain the gas pressure, as it would when there is a projectile or barrel obstruction (or inside a cartridge case). Unless the loose powder is very near the breech, that means the only way powder further up the bore is going to be burned is when the hot gas reaches it and ignites it. That means there will be a slower time of total deflagration and therefore lower pressure than had all the loose powder been down at the breech.
Thank you for the discussion.
Gus