Pierre's post enhanced a suspicion of mine.
Years ago I found a polymer tackle box with 10 compartments dimensioned just right to hold 9 HKS speedloaders filled with FBI 38Spl
+P LHP's ( the latch took up enough of the other compartment it would only work with a Safariland speedloader ). It rode under the truck seat year after year. Summer heat that melted the lube, and Winter sub-zero temps. It's still there.
I've always suspected that constant vibration would turn ball or extruded powders ( some of which have surface coatings ) from carefully sized and shaped to contol burning rate granules into dust like flour. So we should be hearing about grampa's 38 blowing to smithereens when shot with ammo in the trunk for ten years right?
I read gunzines constantly, but the only detonations I hear about are with smaller, i.e. less than 75% of case capacity loads of sloooow burning rate powders in humongous cases ( you know them, the idiots that fireform their set back shouldered 6.5 Weatherby-Wright-Hoyer with a half-full case
of powder reclaimed from 50 BMG rounds ).
Yeah, that's hyperbole, but that's what I hear about when you hear about a detonation or sometimes it's called a flashover.
Anyone know of overpressures resulting from shook to death rifle or pistol cartridges?
Years ago I found a polymer tackle box with 10 compartments dimensioned just right to hold 9 HKS speedloaders filled with FBI 38Spl
+P LHP's ( the latch took up enough of the other compartment it would only work with a Safariland speedloader ). It rode under the truck seat year after year. Summer heat that melted the lube, and Winter sub-zero temps. It's still there.
I've always suspected that constant vibration would turn ball or extruded powders ( some of which have surface coatings ) from carefully sized and shaped to contol burning rate granules into dust like flour. So we should be hearing about grampa's 38 blowing to smithereens when shot with ammo in the trunk for ten years right?
I read gunzines constantly, but the only detonations I hear about are with smaller, i.e. less than 75% of case capacity loads of sloooow burning rate powders in humongous cases ( you know them, the idiots that fireform their set back shouldered 6.5 Weatherby-Wright-Hoyer with a half-full case
of powder reclaimed from 50 BMG rounds ).
Yeah, that's hyperbole, but that's what I hear about when you hear about a detonation or sometimes it's called a flashover.
Anyone know of overpressures resulting from shook to death rifle or pistol cartridges?