Do you really need maritime spring cups for your Glock?

[Raggedyman]

Can a Glock fire under water with factory spring cups? Are maritime spring cups just a gimmick?

Don't cheat. Make your prediction before watching the video.


Fat guy wet T-shirt contest

[The_Shadow]

Very interesting test.  Ammo my brother-in-law had loaded and flooded from the storm surge that was recovered from ground zero for Hurricane Katrina, only had one failure to fire, after having been submerged for a week in mud and water, was washed off and dried off.  The pull down revealed it was a primer failure, the powder was dry and viable. Put a new primer in the case and loaded it back up and shot with no issue.

There were no primer sealant used.

People just take for granted if it gets wet it will not fire, that is not the case...

[Raggedyman]

What kind of ammo was it?

[sqlbullet]

I can't really imagine ever being in a circumstance where I would need to fire a gun underwater.  I know there are guys that have to consider this, and it is an interesting test case.

So...I don't need them.  Someone else might...

[The_Shadow]

What kind of ammo was it?

Handloaded on my press and dies.
Caliber-9-MM Auto            
Powder-Power Pistol 6.6grs         
Case- Mixed Brass               
Primer-CCI Small Pistol            
Bullet-Remington 124 grain         
Remington 124 gr Jacketed Hollow Point            
.355"Dia.   COL 1.125"               
Velocity - 1235 fps            
PSI   34,000   

[Raggedyman]

Any crimp?

[The_Shadow]

Yes slight taper crimp was all, mixed brass too...

In some of the recent pull downs I have seen clear sealants on the primers of some makes of ammo

[Raggedyman]

Thank you for all the work you do.