Double tap 5.56 vs. single tap 7.62 times

[Shabazz]

So here is what I am thinking. If double tapping, a 30 rd mag in an M4 becomes a 15 rd mag which is fewer rounds than in an AR10 mag. Yes, I know the AR10 is heavier and longer and slower to get on target. But I want to ignore that for now.

The question is, does it take more time to double tap with a 5.56, or to single tap with a 7.62x51?

I wonder if anyone has experimented with that.

Thanks!

[J-Dub]

What would it matter?

[kelly neal]

Of course firing a single shot based on a single sight picture would be faster than a double tap with any cartridge, even a .22 LR. You don't get a faster 1st shot with a 5.56 over a 7.62. Now when you start to add in transitions between targets and recoil recovery, most 5.56s can certainly be driven faster than 7.62s.

[Shabazz]

To clarify, let's assume 5 targets 5 feet apart at 25 yards. The 5.56 shoots 2 shots per target. The 7.62 shoots one shot per target.

If anyone has tried anything like this, I would be interested in what you observed.

[Guns-up.50]

Are you assuming the 5.56 is a 1/2 the recoil of 7.72?

Is grouping/ shot placement of any concern?

Last you are not asking which would be more affective?
just faster?

[mkmckinley]

This is like asking "does a dog fart smell worse than a cat fart?" There are too many variables to give a reasonable answer (was the dog eating garbage? Is the cat sick? Inside or outside?) and it's kind of a pointless question anyway.

[RyanB]

I asked an officer at 2/75 and was told his unit tried 7.62 for assaulters and dropped it when they found the enemy required just as many shots with the big gun. They retain KAC rifles for snipers and DMs.

[Magic_Salad0892]

Are you implying that 7.62NATO is double the round that 5.56mm is at the intended engagement distances of the two guns?

Also in order for a scientific test to be viable there has to be a standard, or control measure. Which would be very hard to determine. Then there would have to be an intended taget. We'll assume a dangerous human being. Then there would have to be two guns set up exactly the same.

Because if you wanna get technical, I'd double/triple tap with any caliber gun because there is no ''one shot stop'' guarantee with any round. This makes a 7.62 mag a 10 round magazine, or less.

With 5.56mm I can get shots off faster, and transition targets faster.

This is an apples to oranges comparison. 5.56mm is an ''assault rifle'' round, and 7.62mm is a ''battle rifle'' round. Different missions.

[Guns-up.50]

Are you implying that 7.62NATO is double the round that 5.56mm is at the intended engagement distances of the two guns?

Also in order for a scientific test to be viable there has to be a standard, or control measure. Which would be very hard to determine. Then there would have to be an intended taget. We'll assume a dangerous human being. Then there would have to be two guns set up exactly the same.

Because if you wanna get technical, I'd double/triple tap with any caliber gun because there is no ''one shot stop'' guarantee with any round. This makes a 7.62 mag a 10 round magazine, or less.

With 5.56mm I can get shots off faster, and transition targets faster.

This is an apples to oranges comparison. 5.56mm is an ''assault rifle'' round, and 7.62mm is a ''battle rifle'' round. Different missions.

Yep I agree, if he is worth shooting once hes worth shooting twice. no matter the cal.

[Alaskapopo]

So here is what I am thinking. If double tapping, a 30 rd mag in an M4 becomes a 15 rd mag which is fewer rounds than in an AR10 mag. Yes, I know the AR10 is heavier and longer and slower to get on target. But I want to ignore that for now.

The question is, does it take more time to double tap with a 5.56, or to single tap with a 7.62x51?

I wonder if anyone has experimented with that.

Thanks!

I fired my SCAR in a few match where the match director scored it as 1 hit with a .308 anywhere on paper or 2 with a .223. A few of us used my SCAR 17 and we also shot our 5.56 match guns. On paper stages it was a significant advantage. No arguing that the .308 offers a lot more terminal performance than the 5.56 although both will do the job if you do yours. The .308 has some cons as extra weight, recoil, muzzle blast etc.
Pat