I want to load GS Custom bullets for my 577 NE 3". Was hoping someone has tried these with success..
Would appreciate the advice.
Leon

I have used GS Custom 380gr. FN's in my Krieghoff 500/416 without any problems. Barrels have not bulged or come apart! Very accurate!
Peter.

Hi Peter

I'm quite confident that GSCs are safe and will work well.
My concern is getting a load to group or should I say regulate in my double with a bullet that is 110gr lighter than the original...640gr as opposed to 750gr.
What velocity to expect or aim for etc etc..?

Gerard from GSC didn't seem to be concerned about regulating. So thought I'd ask if anyone on AR would have some insight or advice.
Many thanks
Leon

Go to north Forks many have tried an proven.

Mike

Mike,
Thanks. I looked at NF website and they don't seem to make anything bigger than .510-.550.
I have sent them a email and will wait to hear back from them.

If it's a "modern" double rifle. Shoot whatever you want in it! If they regulate, you are good to go!

The GSC bullet you are looking at weighs 85.3% of the standard bullet. I have been able to get a NF bullet that weighs 90% of the standard weight bullet for my rifle to shoot to regulation.

(And then there is the 75% Rule, though your GSC is 85.3% of the standard weight bullet.)

Velocity of the lighter bullet was faster than with the standard bullet, but only by about 4%.

I used the same powders for both bullet.

Hope this proves helpful finding a load the works.

JPK
Thanks for the info. I'll just have to wait till the bullets arrive (12-14 weeks).
The reason I'd like to try them is two fold.
1) I don't want to go into bad mouthing Woodleigh bullets. They've served me quite well but surely there must be something out the that works better.
In my line of work I don't get to shoot often but when I do it better count!! The price and pressure of Safaris today I feel I've got to use the absolute best I can.
2) The reduced weight and increased velocity are supposed to be the hallmark of GSC.. I know that this combo in a bolt gun they're quite devastating.

Now if what you say regulation at approximately the same/original velocity and a lighter bullet then whats the point of going that way...? I'm committed now so I'll give it a bash and hopefully provide some constructive feedback.
I'd appreciate any advice on bullets for .577NE. I'm going to try DEGOL softs. These are supposed to be a bit "harder" than Woodleighs.
Thanks again

quote:

Originally posted by Wowo:
JPK
Thanks for the info. I'll just have to wait till the bullets arrive (12-14 weeks).
The reason I'd like to try them is two fold.
1) I don't want to go into bad mouthing Woodleigh bullets. They've served me quite well but surely there must be something out the that works better.
In my line of work I don't get to shoot often but when I do it better count!! The price and pressure of Safaris today I feel I've got to use the absolute best I can.
2) The reduced weight and increased velocity are supposed to be the hallmark of GSC.. I know that this combo in a bolt gun they're quite devastating.

Now if what you say regulation at approximately the same/original velocity and a lighter bullet then whats the point of going that way...? I'm committed now so I'll give it a bash and hopefully provide some constructive feedback.
I'd appreciate any advice on bullets for .577NE. I'm going to try DEGOL softs. These are supposed to be a bit "harder" than Woodleighs.
Thanks again

What is it you are using your 577 for? I am scientific wild ass guessing for buff in Australia?

My main use for my big double is for elephants. For that I find using a Woodleigh solid first best, because of their more limited penetration and so more rapid energy dump since my first shot at an elephant is going to be a brain shot. Woodleighs provide all of the penetration required for the brain shot, but not a whole lot more.

The second shot is going to be one of three possibilities, either an insurance shot on a brained elephant, a shot at an elephant knocked down or out but not dead or a shot at a fleeing elephant. For the first two any solid would be fine, for the third possibility I want all of the penetration possible, and the FN solids deliver that far more than the Woodleighs.

I would suggest that penetration is where the GSC's will shine in your 577. With the FN North Forks in my rifle the penetration is far superior to the Woodleighs, double or more, though they are lighter by 10% and only 4% faster.

When your bullets arrive, I suggest starting with a powder charge a little lower than what you use for the 750's and working up past the velocity at which the 750's regulate.

Is your 577 a 3" or 2 3/4"?

JPK

It's a 3" built by Jon Outscha's and Son, Ferlach.
I'm a PH and it's my primary rifle. I actually got it more for temperamental buffalo in Masailand Tz more than for anything else.
Obviously, also used it in Botswana on elephant.
I'm looking for penetration especially for going away anchoring shots. Something that'll hold its course.
Also good soft that will also penetrate well and not open up too much.
There does not seem to be much choice in 577 out there. Barnes are great but had a experience with in this rifle no fault of the bullets but the rifle. Suffice to say it's been rectified but still a bit nervous has it was painful and costly exercise!
Going to try the GSCs I may even order the 800Gr FN in the sake of science Theoretically speaking, if I can get the 800gr bullets going at the same pace as the factory load then it may just perform better!
Perhaps I should have called this thread differently. "What are the best available bullets for 577 NE?"
Anyway thanks the info and appreciate any further info.
Wowo

Wowo,

The best 577 bullets out there are the CEB BBW#13s Safari solids and Safari Raptors. 600 and 700 grain Raptors. 650 and 750 grain Safari Solids. They will all shoot into the same wad out of my guns.

Concur with Sam

Dutch

I used the 500-grain GSC FN in a 470 NE.
Very easy transition with same bullet weight.
Longer length of the GSC versus Woodleigh is counterbalanced by the lower barrel resistance of the GSC,
so powder charges changed little to get a regulation load in my 470 NE.
Always best possible accuracy for your rifle,
if you get the bullet diameter matched by the GSC recipe, to your bore and groove diameters.

It is pretty routine for me to get groups half the size of other bullet makes by using the GSC bullets.
North Forks are also good in this regard, as the GSC banding and North Fork grooving and banding allow most freedom of seating length with good neck tension. Thus, either a short or long throated rifle can get what it likes best.

I did find the .416/380-gr GSC FN at 2500 fps to pass through cape buffalo and kill quite well with one shot through the heart.

quote:

Originally posted by srose:
Wowo,

The best 577 bullets out there are the CEB BBW#13s Safari solids and Safari Raptors. 600 and 700 grain Raptors. 650 and 750 grain Safari Solids. They will all shoot into the same wad out of my guns.

I am sure the CEB's would be great.

Woodleigh also offers their Hydro solid in 750gr. That one should penetrate better than the steel jacketed RN's.

Some example of what a FN can do, mine will pass through an elephant broadside; I had a second shot enter the chest of an elephant that I frontal brained and which still had its head and trunk up while it's rear legs were collapsing and that bullet exit through the spine between the rear of the shoulder blades; I hit a buff going away down a slope in the spine about a foot and a half over the root of the tail and that bullet travel the remaining length of the buff and exited the boss.

Here's a photo of the buff, you can see the entrance centerline and the exit through the boss as the dark spot about the center of the right side of the boss:


If penetration is what you are looking for the FN's will deliver!

JPK

I think you should speak to Gerard and work up the plan together with him. He has forgotten more than anyone on this site is going to tell you about regulating his bullets.

Did you contact Gina who now lives in the USA about whether they could not turn the bullets or measure your bun specifically before having them turned.

In my experience the GS Custom is the best bullet made. And yes, I risk my life on them all the time.

Gentlemen,

Thanks for sharing your interesting info and experiences, really appreciated.
JPK nice old bogo and a excellent follow-up shot!
I'll give the GSC's a whirl and anything good that becomes available on the continent!
Will definitely post the results.
Thanks again
Leon

Concur with Sam here as well. The best bullet for that 577NE is the CEB offerings. Wowo, you stated you wanted penetration ... I used the 750gr CEB BBW#13 solid in my 577NE on an elephant cow in 2012. Frontal brain shot, bullet recovered just in front of the base of the tail. Something like 9 feet of elephant penetration with the 577NE!!

Todd
Really impressive penetration, the ol 57 is normally no slouch but that's awesome penetration!

Trouble is getting all this good stuff you guys speak of but working on it! Looked up the Woodleigh Hydros interesting concept that seems to work quite well.

If I can work out how I'll try post some photos of the Woodleighs I've recovered from the .577 from Elephant. Interestingly enough the .500 NE recovered were in perfect shape..

Now I'm confused and I don't know what to try! LOL

Fun and games!
thanks again

quote:

Originally posted by Wowo:
Gentlemen,

Thanks for sharing your interesting info and experiences, really appreciated.
JPK nice old bogo and a excellent follow-up shot!
I'll give the GSC's a whirl and anything good that becomes available on the continent!
Will definitely post the results.
Thanks again
Leon

Thanks. We were on elephant tracks when I shot that buff. He was ornery and not going to give way. No wonder, his scrotum was full of maggots which gained entrance through a wound from a hooking he took from another bull. We sent a tracker back to the truck to radio the camp for recovery and resumed tracking the ele. We caught the eles and I brained a tuskless with a frontal shot later in the day. Good day!

Like Todd, I have had a FN travel the length of a cow ele. That one was a center of chest insurance shot on a tuskless I brained with a frontal. The bullet was found in the guts near the anus as I recall. Not a particularly large tuskless, but still a hell of a lot of penetration.

JPK

Thanks for all the info. Tried posting so photos .. How do I go about getting permission?