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4/22/2019 5:32:20 PM
Posted: 10/30/2004 11:49:23 AM EDT
Hi all, recently this issue came up at work and hadnt been thought about in the past. Given that HP's expand due to fluid pressure acting on the cavity, shooting them under water is going to cause expansion prior to entry.

Any marine unit/Boat cops out there that have a Agency policy in place to switch to some non- HP type of ammo when working on water? (Obviously in case you fall into water is the issue).

Have any of you made it a FMJ only situation? if not what kind of other ammo have you considered or you actually use now?

Any help is appreciated.

Link Posted: 10/30/2004 11:53:38 AM EDT
I have experience in this area. It was never even a consideration, because there was never a thought given to it. We were Surface Fleet so to speak

I had friends in a variety of agencies, state, local, county, and federal... none ever carried FMJ for duty. Under any circumstance, that I'm aware of.

If it's a concern, tell yer guys not to shoot till the guns out of the water

Once the gun is out of the water, hydrostatic pressure is zero.
Link Posted: 10/30/2004 11:58:30 AM EDT
I don't think any round is going to be effective under water.
Link Posted: 10/30/2004 12:02:15 PM EDT

Originally Posted By Max_Power:
I don't think any round is going to be effective under water.

Negative. For example, the Glock 17 fitted with the marine spring cups and using NATO 9mm ball ammo is an effective, albeit short range round. Decent accuracy and range for underwater CQB...

Link Posted: 10/30/2004 5:38:41 PM EDT
And if you dont wear ear underw. protection... byebye hearing. Also, it work safely in 9mm, don't shoot 40,10mm or 45 underwater.
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