[USCG SimTech]

Not dictating the caliber of the new weapon, but is instead “Performance Based Specification”....meaning it has to meet the defined mission. In this case, the article states only that it must demonstrate more knockdown power than a 9mm slug.

You mean knockdown power like the .45 model 1911? It could knock down a shed.

[Gaffer]

Well, you’re right in the normal sense. I own quite a few of them.

However, there are rounds and calibers out there that have the equivalent delivered energy. Additionally, there are other slug designs anywhere from copper jacketed HP compressed powder to newer solid copper designs that open up like a grappling hook on impact.

I don’t think they’re gonna end up with a 45 auto cartridge because of size/weight and magazine sizes. If I had to guess, I’d say they’re gonna go with a .40 SW or maybe even a more exotic design something like a FN 5.7mm.

But, they could well end up surprising us all. Ain’t no telling with acquisition weenies.

[Mikey_1962]

That’s what we all screamed when they switched to the 9mm

Jackasses.

[trebb]

You mean knockdown power like the .45 model 1911? It could knock down a shed.

Yepper - slow and heavy so it doesn't just punch a clean hole without moving some body mass. Add hollow-point to the equation to make the body absorb all the energy and the shed don't stand a chance.

[mac_truck]

You mean knockdown power like the .45 model 1911? It could knock down a shed.

Added bonus...its made in the United States.

[dangerdoc]

I reload for both. Energy level for 9mm and .45 are about the same and an order of magnitude less than a battle rifle.

FMJ ammo really limits what a pistol can do anyway. You are a little better off with the .45 but the difference in one shot stops is only about 10%.

If you must use a FMJ round, there are some more current cartridges that would offer improvement over both the 9mm and .45.

[Rannug]

10mm. Plain and simple.

[PubliusMM]

IN over 50 years of shooting, I have fired a lot of weapons; long guns, pistols, revolvers, etc.
In the realm of handguns, I have NEVER been disappointed with the venerable 1911A1 firing 230 grain roundball ammo when the situation deals with man to man type scenarios.
If the US Military would step up to hollowpoint ammo for the 1911A1, and tune the gun correctly, there would be NO discussion right now.
The 9mm is a nice caliber, but lacks the net power-on-target that the 1911 brings to the battle. The 9mm was a compromise that considered women as the bearer. Give them a carbine.
Keep the 1911A1. It’s battle proven, and it’s got the power.