.525gn Hornadys 134gn AR2213

First shots. yeah I know about the apparent extraction issue. It happens with the bolt handle is lifted, pulled to the rear maybe 1/8th of an inch and then more upward pressure is applied to the bolt handle. It binds the action. Into a smith to get this looked at.
Anyway these are my first shots of any Gibbs.

Hdu: Sorry about your bolt binding issues. What kind of rifle is it? Kind of funny how the muzzle blast affects the camera.

quote:

Originally posted by hdu505:
.525gn Hornadys 134gn AR2213

First shots. yeah I know about the apparent extraction issue. It happens with the bolt handle is lifted, pulled to the rear maybe 1/8th of an inch and then more upward pressure is applied to the bolt handle. It binds the action. Into a smith to get this looked at.
Anyway these are my first shots of any Gibbs.

No ill effect whatsoever...
However the 600 gr bullets would be a bit more severe.
What problem did you have with the action?
505 Gibbs is a great caliber for the big five.
CZ

my 8 year old son was holding the camera.. he declined to shoot the rifle.

It's a CZ550. I fired off some 600gners as well. Very stout loads but recoil was fine although a dozen shots in a session is about my limit.

The binding is very strange and I havent expereienced it on any other cz / brno actions. I need to spend some time working out the issue and getting the smith to fix it. It is not binding on the case, more likly the front locking lugs are binding...

I fired a 505 Gibbs made by Kimber. After each shot, the extractor would be pushed off of the lip, rendering it a single shot dangerous game rifle.

The recoil was punishing. My right arm went numb after only three shots.

Geoff

All of the big 50s tend to take a bit of work to get to function reliably. The 505 Gibbs should take less work than my 500 Jeffery. If you get the 600g bullets up to 2300 fps which I think your 525g bullets are at now, the recoil will be a bit more brisk ...

[QUOTE]Originally posted by hdu505:
my 8 year old son was holding the camera.. he declined to shoot the rifle.

It's a CZ550. I fired off some 600gners as well. Very stout loads but recoil was fine although a dozen shots in a session is about my limit.

Hdu

.............your 8 year old son declined to shoot your .505 Gibbs, that is really disappointing.

However I can't see any reason why he shouldn't.

JUST TAKE OFF THE SCOPE BEFORE HE DOES SHOOT IT.

Pyzda

yeah, I'll leave him away from the .505 for a while. He shoots a 6.5x55 OK and a .223 just beautifully. Last thing I want is for him to become recoil shy.
I have some 600gn woodleighs that sould be doing close to 2300 fps. I need to chrony them.
I'm not chasing 2400fps from 600gn bullets unless buffalo have suddenly become tougher than they were 100 years ago. I think the Woodleighs will perform better at about 2250 fps.
I am very keen to get some monolithic cup point solids like the Cutting edge or Northfork to try. Lighter the better. Should penetrate like stink at high speed.

quote:

Originally posted by hdu505:
my 8 year old son was holding the camera.. he declined to shoot the rifle.
...

Just as well mate. I think the 505 would be a bit much for an 8 year old.

quote:

Originally posted by geoff:
The recoil was punishing. My right arm went numb after only three shots.

Geoff

Hi Geoff,
If your right arm went numb, you either had a poorly designed stock, or you weren't holding it right. It has a lot of recoil, but if you hold it properly and the stock is the right shape it shouldn't do that.

My load for the 600gn Woodleigh is 130 gn AR2209 for about 2270. It is a mild load in my rifle. I haven't tried it on buff yet but I am sure it will work great.

338

You "might" see the ripple effect down the body of the animal when the bullet hits. Hve only noticed it with 500 Nitro's but it tends to occur with greater than 50 cal and heavy bullets.

Buffalo do feel the 600gns hit them.

quote:

Originally posted by 338User:
My load for the 600gn Woodleigh is 130 gn AR2209 for about 2270. It is a mild load in my rifle. I haven't tried it on buff yet but I am sure it will work great.

Thanks mate.. What are you loading behind the 525gn projectiles?

The only 525gn load I have tried on game is 142gn AR2209 behind the 525gn Woodleigh RNSN. This gives 2500fps, and is devastating on pigs. It would be too fast for ideal penetration on buff. The 525gn North Fork Cup Point solid gets the same velocity with 134gn AR2209, but I haven't used that on game yet. I just got some 525gn Barnes TSX bullets, so I will be keen to try them out as soon as I can work up a load.

quote:

Originally posted by hdu505:

quote:

Originally posted by 338User:
My load for the 600gn Woodleigh is 130 gn AR2209 for about 2270. It is a mild load in my rifle. I haven't tried it on buff yet but I am sure it will work great.

Thanks mate.. What are you loading behind the 525gn projectiles?

I've got to believe 2150 fps with a 600g Woodleigh PP would be close to ideal for that bullet. Anyone used them on buff?

quote:

Originally posted by chuck375:
Anyone used them on buff?

On Water Buffalo, yes, did the original testing with the 600gn PP bullets versus the 525gn RN SN bullets.

Flattened quite a few of them.

.

338user,
In addition to probably not holding the rifle in the proper position, it is a piece of junk. Not only the stock but the entire action. Please note that the pressure on the bolt face pushed the extractor off of the cartridge lip, rendering it useless. I had to slap the extractor back into place to extract the spent case. What good is a dangerous game rifle that is a single shot that is most difficult to reload?

Fortunately, I did not own the rifle and quickly returned it to the owner; who, by the way, was afraid to shoot it.

Geoff

Any rifle intended for dangerous game must be 100% reliable. On top of that the shooter needs to be 100% comfortable shooting it. So what you related there does not bode well for the owner. It is very difficult to get a large calibre dangerous game rifle cheap.

I'll tip my hat to your son, he's obviously intelligent.

338 , these days it is anyway. I remember as recently as 10 years ago you could farm actions/barrels work out and have one working fine for a $600 donor brno action and 2-3K of extras. Some of the popular wildcats on this site were designed around 3K projects, and that's quoting the inventors just a few years ago. Not sure when all bigbores suddenly needed a 6-7K price tag to "work properly".

Looks like that scope is awfully close to your eye. I would get it moved forward. You handle the recoil well but in the field your eye may end up much closer to the scope ring.

465H&H

quote:

Originally posted by Karl:
338 , these days it is anyway. I remember as recently as 10 years ago you could farm actions/barrels work out and have one working fine for a $600 donor brno action and 2-3K of extras. Some of the popular wildcats on this site were designed around 3K projects, and that's quoting the inventors just a few years ago. Not sure when all bigbores suddenly needed a 6-7K price tag to "work properly".

Karl

I've been asking the very same question myself.

As a toolmaker I'm absolutely floored by the hideous amounts of $$$ what SOME gunsmiths charge for their mostly shit services.

What is even more unbelievable is that their work WHAT THEY GOT PAID FOR has to be recommissioned two or three times over and over until hopefully someone gets it right. (just don't hold your breath).


Pyzda

Pyrzda- Its nice that you and I agree on so many levels. I got into building and designing big Bores as a result of the poor results I got from many GREAT GUNSMITHS. It doesnt take 6-7K of work to make a highly reliable and fully functional Big Bore of any caliber. IT really isn't rocket science. I have fixed many many guns built by the great smiths that flat didn't work at a disturbing level. -Rob

Rob and Pyzda, what's your opinion of the 505 Gibbs in a CZ 550? That's where I was originally going, but the amount of bolt face remaining kind of freaked me out, so I went with the 500 Jeffery which I'm very happy with. There is something about that big 505 Gibbs case though that stirs the imagination.

quote:

Originally posted by Robgunbuilder:
Pyrzda- Its nice that you and I agree on so many levels. I got into building and designing big Bores as a result of the poor results I got from many GREAT GUNSMITHS. It doesnt take 6-7K of work to make a highly reliable and fully functional Big Bore of any caliber. IT really isn't rocket science. I have fixed many many guns built by the great smiths that flat didn't work at a disturbing level. -Rob

Thanks Rob

It really is not a rocket science. Just a combination of common sense, patience, have the right tool(s) and know when, where and how to use it.

Pyzda

Chuck

If you mean the rim left on the bolt, to me that's a concern, but nobody ever seem to complain about it,,,, so?

Maybe after someone drops the bolt on a concrete floor the bolt circumstantial landing may have very unhappy ending.

Personally for a case as big as the Gibbs I would rather have .750" or even .800" bolt.

Pyzda

Thanks Pyzda, that's what I meant