Say you have a chamber with a lot of freebore, something like a Weatherby. Your chambered cartridges are "well short" of touching the lands.
Also let's say you properly trimmed your brass length, and have good neck clearance and known non-excessive neck tension, perhaps no neck crimp either.
What would be possible causes of overpressure / pressure spike at that point ?
A tight bore ?
Wrong (too fast) powder ?
Too little powder fill, or too highly compressed ?
Unclean, oily chamber ?
Cold temp load workup then shot on a hot day ?
What else ?
I'm trying to get a handle on what could cause an accidental and catastrophic pressure spike.
Also let's say you properly trimmed your brass length, and have good neck clearance and known non-excessive neck tension, perhaps no neck crimp either.
What would be possible causes of overpressure / pressure spike at that point ?
A tight bore ?
Wrong (too fast) powder ?
Too little powder fill, or too highly compressed ?
Unclean, oily chamber ?
Cold temp load workup then shot on a hot day ?
What else ?
I'm trying to get a handle on what could cause an accidental and catastrophic pressure spike.