Barrel Torque

[guntech]

No. Ridiculously. Your lack of understanding doesn’t make something bull####.

I just can't visulize the monkey on the end of the bar... sorry. lol

 

[guntech]

I cant possibly see the upside to torquing to 500 ft-lbs.

If there was an upside competative Benchrest Shooters would all be doing it... they are all about the ultimate in accuracy.

 

[Tokay444]

I just can't visulize the monkey on the end of the bar... sorry. lol

That's fine. You don't have to.
Here we go with the, "bEnChReStErS DoN't Do It..." argument.

 

[tiriaq]

How would 500 ft lb of torque be applied when installing a barrel on a receiver?

 

[kamlooky]

Sometimes common sense is truly a blessed gift.

 

[dan belisle]

How would 500 ft lb of torque be applied when installing a barrel on a receiver?

Need some kind of special tooling, at a guess. 500 ft lbs is a LOT of torque. Ive been working locomotives and heavy industrial engines for a lot of years, and there are only a few fasteners that require that. I'd be interested in what these "special threads" are though. Anyone got a Pic or more info? - dan

 

[Tokay444]

How would 500 ft lb of torque be applied when installing a barrel on a receiver?

With a torque wrench.

 

[Tokay444]

Need some kind of special tooling, at a guess. 500 ft lbs is a LOT of torque. Ive been working locomotives and heavy industrial engines for a lot of years, and there are only a few fasteners that require that. I'd be interested in what these "specil threads" are though. Anyone got a Pic or more info? - dan

Modified buttress.

 

[dan belisle]

Modified buttress.

Interesting. Any pics? - dan

 

[Lakkenbak]

Need some kind of special tooling, at a guess. 500 ft lbs is a LOT of torque. Ive been working locomotives and heavy industrial engines for a lot of years, and there are only a few fasteners that require that. I'd be interested in what these "special threads" are though. Anyone got a Pic or more info? - dan

A lot of semi-truck tires are torqued to 480 so nothing really rare about 500ftlbs. The handle on the wrench just gets a little longer.

 

[tiriaq]

With a 10 foot handle?

 

[dan belisle]

A lot of semi-truck tires are torqued to 480 so nothing really rare about 500ftlbs. The handle on the wrench just gets a little longer.

I've done semi tires, many as a young man. Numerous uncles had trucking constructioncompanies and nephews are cheap labour. And engine base bolts to 2400, main Gen bolts to 1800 etc. 500 is a LOT of torque On a gun. - dan

 

[dan belisle]

With a 10 foot handle?

Yes, big breaker bar, or pneumatics (the usual method). I'm visualizing how to do this on a barrel receiver joint. The buttress threads give you a flat surface instead of a tapered one, which will allow more torque. Be interesting to see the process in their shop. - dan

 

[remington jim]

Ok ! I’m a 100 lb max guy ! WHAT is the point of the modified thread type and super high torque values such as 500 plus foot lbs torque ? What is it gonna do for you ? WHY WHY WHY RJ

 

[Tokay444]

With a 10 foot handle?

No.

 

[Tokay444]

Yes, big breaker bar, or pneumatics (the usual method). I'm visualizing how to do this on a barrel receiver joint. The buttress threads give you a flat surface instead of a tapered one, which will allow more torque. Be interesting to see the process in their shop. - dan

You're never going to see that.

 

[Tokay444]

Interesting. Any pics? - dan

No one has ever taken one apart.

 

[peterdobson]

Thanks, we have our answer from the mostly rational posts.

Regards,
Peter

 

[remington jim]

Modified buttress.

https://en.wikipedia.org/wiki/Buttress_thread

 

[OkayShooter]

How would 500 ft lb of torque be applied when installing a barrel on a receiver?

SUPER long bar, or a Torque multiplier tool.