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| Messages 1 - 18 of total 18 in this topic |
TGT
Social climber
So Cal
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May 12, 2009 - 07:56pm PT
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It's not the gun
It's the
Nancy boy.
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Chaz
Trad climber
Boss Angeles
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May 12, 2009 - 07:58pm PT
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Just a .22.
Those guys don't know what they're doing.
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RDB
Social climber
way out there
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May 12, 2009 - 08:18pm PT
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Funny videos unless you are the guy who pulled the trigger.
The rifle is..
An A-Square bolt gun based on an Enfield action in .577 TR. 750 gr bullet at 2470fps. Rifle weight is around 13#. I have a 505 that does 600gr @ 2400 and believe me, what you see here isn't a "nancy boy" problem.
I've shot a lot of big bore rifle.
You couldn't pay me to pull the trigger on a .577 TR for any reason. I bet few here would fair any better than the nancy boys in the video.
Last time I let a buddy (exSF and a gun guy) who thought he knew something about rifles shoot my 505 with just 525 gr bullets @ 2400, it took shoulder surgery to make it right. It is the kind of recoil that can rip your retina off and easily dislocate/break a shoulder if not done correctly. Shooting a 460 WM while not fun, is child's play in comparison to the .577. 460 is a 500gr @ 2500fps. in a similar weight rifle.
Any of them make a 458 Win mag seem like a toy.
There is a large caliber, lwt, single shot in there as well. But the "big boy" is a .577 owned by a hunter (his indoor range shown) in Saudi Arabia or Dubia.
Sitting down or using a standing bench is not the "right" way :)
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Riotch
Trad climber
Kayenta, Arizona
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May 12, 2009 - 08:20pm PT
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Somehow, I'm not so worried about the "terrorist threat" after watching that.
What a bunch of . . .
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Chaz
Trad climber
Boss Angeles
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May 12, 2009 - 08:24pm PT
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That's a Camel Rifle.
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RDB
Social climber
way out there
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May 12, 2009 - 08:44pm PT
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BIG difference between a factory 460 Weatherby Mag and any load you'll ever get from a 458 Win mag even as a max hand load. You'll be hard pressed to get even 2250fps from a 500 gr bullet in a 458 Win mag.
Recoil difference between 2550 and 2250...as they say, "priceless". Most 458 WM ammo is closer to 2100fps. and pretty casual.
Injuries? Like most things that have some risk or skill required it is all about technique. Do it right and it is a "reasonable" experience. Do it wrong and you can get hurt.
Anyone can be taught to shoot a 458 win mag effectively. 14 year old kids do it in Africa. 460 Weatherby or 505s and bigger...not so much. As they say, it is an acquired taste.
Shoulder shouldn't be a big deal. But most akin to getting punched in the face by a heavy weight boxer. No real way to avoid the recoil there as your brain gets sloshed around in your skull.
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Riotch
Trad climber
Kayenta, Arizona
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May 12, 2009 - 09:05pm PT
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Yeah, man on some of those shots it doesn't even look like the butt of the gun is even touching their shoulder before firing!
That's gotta hurt!
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RDB
Social climber
way out there
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May 12, 2009 - 09:35pm PT
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Good info on recoil for those that haven't shot a big bore.
From this web site:
http://www.accuratereloading.com/recoil.html
Any rifle that has a Recoil Factor of less than 100 can be shot by anyone that can handle a rifle.
Between 100 and 200 is moderate.
Between 200 and 300 is moderately heavy .
Between 300 and 400 is heavy.
Between 400 and 700 is very heavy.
Between 700 and 1000 is extremely heavy.
Between 1000 and 3000 very painful
223........22
30/06.....250
338 Win...468
375 H&H...628
458 Win...997
460 WM...2626
577 TR...4768
I'm had enough at about 3000 and have only fired a few rounds at that level. 2500 isn't all that much fun. Fun ends around 500 for most. 20 rounds at 1000 no matter how much fun will give most a decent size headache.
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JuanDeFuca
Big Wall climber
Stoney Point
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Topic Author's Reply - May 13, 2009 - 01:34pm PT
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bump
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Barcus
Trad climber
San Luis Obispo, Ca.
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May 13, 2009 - 02:03pm PT
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In all of those videos only ONE man new what the F%&K he was doin!
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RDB
Social climber
way out there
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May 13, 2009 - 02:54pm PT
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Same rifle here:
http://www.youtube.com/watch?v=7FCY3_5Bg1M&feature=related
Lots of video to be found under a search at
"T-Rex Rifle cal. 577"
.577 TR is bigger, faster and heavier than anything shown here. .577 TR is one of the two or three largest sporting cartridges that were developed for modern smokeless powder. The .577 TR is a full 400fps faster than the .577 Nitro which is a bid deal for rifle velocities. The older .577 Nitro was always consider a huge gun back in the day. Only the 600 Nitro was more gun. Both were produced around the turn of th last century as smokeless rounds. The .577 had been a black powder round before that. The .577 TR was developed by Art Alphin @ A-Square in 1993 to be the most powerful bolt gun, sporting ammunition avalable. (50 BMG ammo is the most powerful "sporting ammunition" but it is not typically used on game animals)
History, reloading and ballistics info for the .577 TR are available in the A-Square reloading manual.
More fun big bore facts here..
http://en.wikipedia.org/wiki/.700_Nitro_Express
Here a little comparison.
above
left to right .22 rim fire, 9mm para, 45acp, 30/06, 45/70, 45/90, 416 Rem Mag, 416 Rigby, .465 Nitro, .50 Alaska, 505 Dakota, 505 Gibbs
More..
above
left to right
9mm, 45acp, 44mag, 223, 7.62x39, 30/06, 416 Rigby, 45/70, 505 Gibbs, .577 Nitro, .600 Nitro.
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JuanDeFuca
Big Wall climber
Stoney Point
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Topic Author's Reply - May 13, 2009 - 04:49pm PT
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Did the one guy shine the flashlite into the guys eye looking for a tear.
You would have to be crazy to shoot that gun.
Juan
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RDB
Social climber
way out there
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May 13, 2009 - 05:05pm PT
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"Did the one guy shine the flashlite into the guys eye looking for a tear."
Complete tear you are totally blind. Light I assume was to see if the guy could still see out of both eyes. Partial tears give you black spots in your vision. Bigger the tear the bigger the black spots.
I stopped shooting my big bores almost 10 years ago just for that reason. Mind you my biggest has 1/2 the recoil of a .577 TR.
"You would have to be crazy to shoot that gun."
No arguement from me!
And the .577 is not cheap to shoot! $2.00 each just for each 750gr bullet, a $1.00 or more for the 170 or so grains of powder in each case, your reloading time and the $5.00 case that won't last forever at a working CUP of 50K. Makes it about $8.0 to $10.00 each time you pull the trigger if you work CHEAP!
Take a look at the 505 Gibbs and the .577 Nitro pictured above.
Then imagine combining the two in a modern form, as wide as the .577 and as long as the 505 Gibbs. You'd then have a good idea of what the .577 is. The .577 TR is about as *big* as you can make a bolt gun for sporting (or comic) purposes. Suspect it would work for killing decent size tractors as well.
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TradIsGood
Chalkless climber
the Gunks end of the country
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May 13, 2009 - 05:30pm PT
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Gun? No. It is the new, kindler, and gentler "optional waterboarding".
The video is shown to the participants so they can see how much fun it is before they sign the waiver.
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JuanDeFuca
Big Wall climber
Stoney Point
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Topic Author's Reply - May 14, 2009 - 12:04pm PT
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After seeing the video its hard to believe the towers fell.
Juan
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RDB
Social climber
way out there
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May 14, 2009 - 12:44pm PT
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"After seeing the video its hard to believe the towers fell."
Ignorance and racism go hand in hand.
Letting someone pop a cap in a .577 without proper training and a lot of experince risks serious injury to the shooter and bystanders. While funny in the video it is a sand bag. Like sticking a green kid leading 5.7 on a 5.11 R route and telling him to have fun.
Not so funny if you are the kid...Arab or not.
577 Tyrannosaur
In the days that the British ruled most of huntable Africa, the magic velocity for dangerous game hunting was considered to be 2150 feet per second. During the past 30 years the game has changed, however, and sportsmen demand ever more from their rifles. Now in order to assure adequate penetration from every angle, the conventional wisdom is that a cartridge should generate 2400 feet per second.
The 577 Tyrannosaur is a modern day attempt to blend the giant .585 diameter 750 grain bullets of the 577 Nitro Express with the magic velocity of 2400 feet per second. The result is a brutish rifle that is nearly uncontrollable. Another consideration is that monolithic solids should be used in this cartridge because bullets of a convention design meant for 577 Nitro Express velocities will likely rivet or break apart at 577 Tyrannosaur velocities. One Norwegian hunter shot an elephant in the spine using a .577 Tyrannosaur loaded with Woodleigh 750 grain solids. The Woodleigh riveted and fishtailed, as it had been pushed beyond its design criteria.
For the sportsman interested in building a custom rifle for the 577 Tyrannosaur, only a magnum length (3.800") magazine box will suffice, thus ruling out model 70's and Mauser 98's. Further, the enormous diameter of the case rim (0.688") requires either a P14 Enfield bolt, or at least a 0.750" bolt body diameter. Magazine box and follower construction as well as rail and ramp modifications to the action will all be completely custom and should only be attempted by the most skilled big bore specialist. Brass and ammo for the 577 Tyrannosaur are even more expensive and harder to find than for the 577 Nitro Express. Although the 577 Tyrannosaur can be loaded down to reduce its horrendous and almost uncontrollable recoil, the .585 Nyati would be a better choice for lower velocity loads since it burns less powder and therefore will produce less recoil.
Example loads:
Cartridge Powder Primer Bullet Velocity Notes
577 Tyrannosaur 170.0 grains IMR4350 F215 750 solid 2480fps
http://www.470mbogo.com/BigBoreCompendium/
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