Here's a caliber I won't be buying...

One mistake is not putting the stock butt into the crook of the shoulder and holding tight. This is not like weighing 250lbs and putting the bottom corner of the .223 AR-15 telescoping stock on or over your shoulder. Another even bigger one that makes it dangerous for semi-autos of this caliber is standing straight up. It is important to relax your knees and lean forward onto the front foot as much as is needed to absorb as much recoil as possible. That comes with practice. Obviously, ewoks are going to have problems, and for those folks, I'd recommend mounting the gun. With a semi-auto version, you could fall and drop the gun, and have it go off again. Or catch the gun mid-air after the shot and accidentally grab the trigger. I could see an attempted shot, a second shot as the shooter grabs the trigger mid-air, and then the gun goes off a third time as the gun hits the ground so hard that the trigger is slammed back for a third shot.

:Wow1:

Stephanie
 

Lynn

Expedition Leader
BTW, here's' a picture of the .557 shell:

img_1610412_1266166_0
 

Lynn

Expedition Leader
Another even bigger one that makes it dangerous for semi-autos of this caliber is standing straight up.

I haven't really studied the video, but it looked to me like they were using two rifles, one lever and one bolt. I think both are single-shots.

Online I have seen double rifles in .557, but never a semi-auto. Do you know of one?
 
I haven't really studied the video, but it looked to me like they were using two rifles, one lever and one bolt. I think both are single-shots.

Online I have seen double rifles in .557, but never a semi-auto. Do you know of one?

No, I don't, and I think it's a good thing, because of the recoil factor. Several of those guys couldn't hang onto the gun, and that's dangerous with a semi-automatic. And I suspect that for it to be a semi-automatic, the standard small-arms gun would have to be substantially built up to take the recoil forces.
 

Mr. Leary

Glamping Excursionaire
I'm sure that a proper stock would go a long way toward deflecting the recoil of that beast. For example, a Barrett .50 kicks, but not nearly as much as you would expect from the volume of load that it puts out.

A traditional wooden stock such as the one they are using would be very difficult to control under the best of circumstances with that short of a barrel.

Something tells me that the .557 round is more effective as a deterent than it is in practical application. :snorkel:
 

kletzenklueffer

Adventurer
Those videos were on accuratereloading .com for a long time. There were several videos in which the rifle came out of the shooters hands. There is no good reason a muzzle brake isn't employed that would reduce recoil easily by half. A 50BMG will near always have a muzzle brake. Without it, it'll break bones.

I read a feedback to the company that made the TRex. It was from a doctor that was going on an African hunt and was loaned a Trex for the hunt. He test fired it and it broke his collar bone and thumb.
 

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