Understanding Pressure

[fguffey]

I believe someone posted some pressure measurements here or elsewhere and you could in fact see a small difference (higher pressure with neck sized brass), due presumably to the energy required to expand the case. I can't recall where I saw the chamber friction work. Maybe precision shooting a long time ago?

Like I said; the trigger is pulled and then things really get complicated.

Measuring is one thing; understanding the difference is another thing.

F. Guffey

 

[dmoran]

A very great article and tests resultants (Thanks orkan), to now a thread that's been hijacked and wrecked with rambling, non-sense, and "jibber" by keyboard expert reloaders.
Donovan

 

[Homerange]

A very great article and tests resultants (Thanks orkan), to now a thread that's been hijacked and wrecked with rambling, non-sense, and "jibber" by keyboard expert reloaders.
Donovan

Yep, but they just don't get that their discussion are entirely worthy of another thread.

 

[fguffey]

I believe someone posted some pressure measurements here or elsewhere and you could in fact see a small difference (higher pressure with neck sized brass), due presumably to the energy required to expand the case.

Yep, but they just don't get that their discussion are entirely worthy of another thread.

This thread was to be the thread of all threads and after 4 pages someone claims the difference in pressure between a neck sized and full length sized case is the energy necessary to expand the case. And again; it is like measuring how red a shirt is with a 3 foot ruler.

F. Guffey