AR rifle and bolt carrier cutaway demonstration

[Wildrose]

The Stoner system has less recoil and less barrel whip. Making it more accurate and easier to manage FA.

That certainly can't be demonstrated with data. "Felt Recoil" depends on many factors but the calculations are pretty easy. The PD systems put more weight forward over the barrel and weigh a few more ounces overall which gives them the advantage in any recoil calculation.

The Piston system actually stiffens the barrel's resistance to "whip".

For precision shooting the Piston System is far superior which is why it's so easy to make one that will shoot sub MOA with a much lighter barrel than is required on the DI systems.

Expert may disagree and do but many agree that the PD's are more accurate for that reason.

I currently own quite a few of both types and have for many years and my accumulated data strongly supports this.

Pick up an off the shelf Sig 516 or 716 (Or similar quality PD AR) and compare it to any off the shelf DI gun and test them both with the same types of ammo under varying conditions and see what you come up with.

Another good article.

Direct Impingement vs Gas Piston Systems: 2021 Guide - Gun Mann

[Wildrose]

I'll add this.

During the recent competition to replace the M4, or at least see if it could be replaced, the winner of that competition was the FN SCAR a short stroke gas piston operating system similar to the Sig GP system.

When it comes to expert opinions there is no more concentrated source of expertise on the subject than in the SOCOM community.

[US Conservative]

Reciprocating mass. What is it?

Was the AR platform designed as a semi auto only?

Or was it a platform that included contro)able recoil in combat?

[Physics Hunter]

Reciprocating mass. What is it?

Was the AR platform designed as a semi auto only?

Or was it a platform that included contro)able recoil in combat?

Oh Good Gravy...

The bolt, carrier, spent cartridge, and whatever, move back and forth to cycle rounds.

"reciprocating..."

[East of the Beast]

Still hard to be the simplistic, rattling, sloppy AK47

[Wildrose]

Still hard to be the simplistic, rattling, sloppy AK47

They are the single most sough out combat rifle in the world because of their simplicity and durability.

You can teach the average 9yo in a terrorist or warlord's camp to field strip and reassemble them and to kill with them consistently even at 100 yards in a day.

[US Conservative]

The Stoner system has less recoil and less barrel whip. Making it more accurate and easier to manage FA.

Indeed and that was one of its major breakthroughs- controllable full auto fire.

I've never fired an automatic M14 but apparently it wasn't so good.

[Wildrose]

Indeed and that was one of its major breakthroughs- controllable full auto fire.

I've never fired an automatic M14 but apparently it wasn't so good.

That must be why they are still in use or were until very recently by SOF's.

The Rangers refused to ever give up their M14's for decades because they were so effective.

The only modification needed for controllable full auto fire was a proper muzzle device.

[US Conservative]

The M14 was America's shortest lived service rifle. Its large and heavy as is its ammo. It's very difficult to control full auto.

The reason modified M14s were used through the war on terror was because they
We're available in the early 2000s while accurized AR10s and AR15s weren't yet widely available.
Since that time we have optimized ammo, ar rifles, and optics the M14 is obsolescent.

Piston based are like the HK 416 with loaded mag, lpvo, and mounts are 12 plus lbs.

It's heavier than the m14.

The 416s role is like a LAR, example the BAR.

[US Conservative]

Nice...