Anyone with a answer to this one ?

[mac1911]

I know it aint a cast boolit and im not sure where to post it here on CB.com
All I know is I find a great deal of good info and answers here on CB. anyone care to have a clue. I do not have the answer. This came up on another forum35787

[geargnasher]

Deep underwater recovery??

Gear

[303Guy]

Somebody having fun with sizing and forming brass.

[cbrick]

Somebody is funnin with ya.

Rick

[Alchemist]

Somebody having fun with sizing and forming brass.

Exactly

[JIMinPHX]

The first one looks a little like a 362436.:wink:

[Blammer]

looks like it went through a roll press. :D

[greywuuf]

What ? you have not heard of the new factory 9mm major load with crimped case to keep the powder column on the primer and bullets from setting back under extreme slide speed and violent loading cycle? its an IPSC thing. some are using a new two piece chamber design for tighter tolerance cambering.

edit: ok so those are actually 25 acp seems like the pocket pistol people want more power too ;-)

[Mumblypeg]

I'd say the one one the left is young and single, the one one the right is married and put on a few pounds and lost the curves...

[MtGun44]

Hydrostatic pressure pulse on the outside. Probably explosive driven.

Drop in the water near a 1/4 stick of dynamite being detonated, pressure pulse crunches
it just like that.

Bill

[turbo1889]

Deep underwater recovery??

Gear

Agreed, seen a couple of BIG shells recovered from a WWII ship wrecked sub (the front big deck gun) that looked like that in a museum and the plaque said the reason they looked like that was because the deep ocean pressure had collapsed them inward.

[greywuuf]

Agreed, seen a couple of BIG shells recovered from a WWII ship wrecked sub (the front big deck gun) that looked like that in a museum and the plaque said the reason they looked like that was because the deep ocean pressure had collapsed them inward.

I suppose that COULD be but if that is the case they were not down there long or they were really well cleaned up.

are we sure someone was not over zealous with a case canelure tool ? ( with the wrong wheels in it as there seems to be no knurling )

[noylj]

I know I like a wasp-waisted round in 9x19 and .40, but that is carrying things a bit far.
Could do that by vacuum bagging the round with no cull plate.

[303Guy]

I'd say the one one the left is young and single, the one one the right is married and put on a few pounds and lost the curves... And first prize goes to .... :mrgreen:

[lavenatti]

Vacuum packed for freshness.

[metweezer]

the first one looks a little like a 362436.:wink:

roflmao

[turbo1889]

I'm not sure how deep one would have to go to accomplish that. Seems I remember that with standard scuba gear you can go a couple hundred feet deep and even deeper with helium mix.

Ocean pressure gets pretty high pretty fast and it don't take much depth to get pressure levels way higher then what is in a standard shop type air compressor tank. Maybe somebody went scuba diving with a little pocket pistol still in their pocket and when they got back up topside they pulled the shells from the magazine and did a *** ???? and took a picture when they saw what the pressure had done to them. As I understand it with a scuba system the regulator ensures that the air you are breathing is the same pressure as the water around you which is what keeps the same thing from happening to you.

I don’t know how much pressure is needed to do that but for all I know standard scuba depth might be enough on those little thin wall 25-ACP shells.

[BAGTIC]

Pressure increases .4 psi per foot of depth. A thousand feet would only be 400 psi and as the cases collapses the pressure inside also rises increasing resistance.