9mm vs 40 S&W: 9mm Wins The War

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9mm vs 40 S&W: 9mm Wins The War

It’s common knowledge by now that a few years after publicly dumping 9mm, the FBI and others are going back in a big way. The simple fact is that 9mm is the standard and we’ve had so much investment in the weapons and projectiles that we’ve perfected this cartridge over time.

So, if you’re looking forward to picking up a cheap police or agency trade-in 40S&W then ask yourself why?

We all know that the FBI switched to 10mm, then 40S&W, after a suspect survived a gunshot wound and agents lost their lives.

The extra punch of the 40S&W won out in the end, but recently the FBI has re-evaluated the latest breed of 9mm ammunition. The decision to return speaks volumes.

That might be a more powerful case study than any of the 9mm vs 40 S&W ammo videos on Youtube. You have all kinds of weird demonstrations on the other side, like this one. This guy is using light 115gr 9mm bullets, though.

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Get the best deal on 9mm handguns at Sportsman’s Warehouse.

9mm offers several advantages over the 40 S&W round, including the added capacity and reduced recoil.

40 S&W still has a significant edge when it comes to the final impact, but the modern breed of 9mm weapons have closed the gap.

New 9mm Handguns The Best CCW

There are issues with it, but the Sig P365 Nitron shows the way forward, with 10+1 in a tiny form factor. Then there is the double-stack Springfield Armory XDMOD.2 Sub-Compact, with a 12+1 in the standard clip and up to 16+1 with an extended mag.

Those are guns that slip in to your waistband. The compact class, with a 4-inch barrel, offers even more. We recently did a piece on Glock 19 alternatives and stuck to the 9mm variants for consistency. The likes of the Sig P320 and FN 509 offer insane bang for buck these days and you can easily get 20 bullets in an extended mag an 15+1 in a gun you can conceal.

Here is a 9mm and a 40S&W being shot repeatedly into a pig’s head. If you think that’s gross, don’t watch. If you kinda want to see it, then you’re welcome…

9mm Closed The Gap On 40S&W

As 9mm technology continues to evolve in tiny, invisible increments, the heavier and more expensive 40 S&W has slowly lost its advantage. It might still offer superior stopping power, just, but the brutal recoil and, therefore, reduced accuracy takes away from your shot placement.

A great 9mm with heavyweight, 150gr hollowpoint bullets is so close to a 40S&W now, that its own inherent benefits mean its worth making the switch.

It’s easier to group shots with a 9mm, you can get sub-compact guns with double-stack, double digit magazines and they’re getting better all the time as the manufacturers focus their efforts on shrinking an effective gun around this one source of ammunition.

You will save money at the range, as 9mm ammo is almost universally cheaper than 40S&W. It’s also easier to get a 9mm system with another, bigger semi-auto pistol like the CZ Scorpion Evo 3.

Before you splash out on a 40S&W, though, look at the FBI’s findings. You want basically the same thing they do in a live round, so it’s worth paying attention to one of the most vigorous live tests that can realistically occur.

For the FBI to commit this kind of money to trashing all their 40S&W weapons and replacing the with 9mm, there must be a major advantage. Something other people do the work for us, and all we have to do is pay attention and learn.

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