For those of you who have this monster:

1. how much does your rifle weigh without sling or full mag of ammo?

2. what is your muzzle velocity with 750 grainers? 900 grainers?

Thanks for answering.

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Roger, my rifle weighs 11 lbs.
I have gotten 2533 fps with 750 grain Woodleigh softnoses.
Have not tried the 900 grainers.

Roger, is that yours on the BBK02 action in at Nitro Gun Works in Wasilla?

If it is, that's one bad a$$ looking gun. Dave said it will go 16# I think. Don't forget to squint when you pull the trigger. Detatched retnas are common I hear.

Nope, that isn't mine. I am canvasing for weights to see what the average is.

Last night I used Excel and formulas in A-Sq's manual to write a recoil calc spreadsheet. I used velocities from 1950-2500fps and powder weights from A-Sq's page on the .577 T-Rex. Now I can see how incrementally recoil rises vs velocity. It is linear.

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[This message has been edited by Roger Rothschild (edited 02-11-2002).]

My 585 nyati weighs 13.25 pounds including Leupold 2.5x scope and muzzle brake.

I have gotten up to 2340 fps with 750 grains. I hunted with 2250 fps. I think at 2250 fps it kicks just a tad less than an unbraked 458 lott (9 pounds).

Rune,

Have you done any expansion test whit your 585 nyati, woodleigh 750 grainers at 2500 f/s.

Overkill, no at 2500 fps there will be nothing left of the bullet.
I have tested Woodleighs at 2200fps They expand to well over an inch. Don't remember exactly how much. At 2400 fps The jacket separated from the core. These tests were done fireing at a rack of wet phonebooks.

Mine is in progress as we speak but I plan a weight of 13-14lbs. Unfortunately, the Mcmillan express stock I ordered will only take a #7 contour .875 ( muzzel) so this will reduce the weight somewhat. I am undeceided yet about adding mercury recoil reducers until I first fire the rifle.-Rob

Rob do you feel the McMillan will handle the recoil??. I think I remember reading somewhere that they guarantee recoil handling ability up to .458 lott range of cartridges, my friend and I will commence building ours shortly on Brno 602 actions and we have considered a McMillan synthetic as it is a couple of hundred cheaper than a Corperal Trading Stock which I have on my .416 (CZ, Mc Millan did not have a stock for the 550).

We are also considering a rifle weighing 13-14 pounds with a breaked 24 or 26 inch barrell.

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It won't paste on here but the rifle at 14 pounds and 2300fps will yield 148 ft/lbs recoil at a recoil velocity of 26 fps. Thats going to kick.

[This message has been edited by Roger Rothschild (edited 02-12-2002).]

I don't see any reason why the Mcmillan express stock should not be perfectly fine if properly set-up. I've seen a .585 Nyati built on a mauser 98 with a wood stock that has held up for years and weighs about 10 lbs.-I plan to put in lots of crossbolts and steel-bed everything. In addition I have a second recoil lug on the barrel. The biggest problem is that the Mcmillan stock will only handle a #7 contour barrel and not the #8 which is 1.0 inches at the muzzel, this will unfortuately decrease the weight by about a lb. Mcmillan also takes 3-4 months to make a stock, so get your order in ASAP.-Rob

Rune,

What soft nose bullets do you think can hold, and not separate from the core in 2500 f/s.

What do you think about the Hawk soft nose bullets whit 0,65....?

Overkill, There are no 585 cal. bullets that will hold together at 2500 FPS as far I know. A Hawk bullet even with a .065 jacket would be the last bullet you would want to use at very high velocitys in a 585 cal rifle, their very soft jacket and core make them totally unsuitable.

[This message has been edited by Mitch (edited 02-13-2002).]

What bullet is NAVAL ORDINANCE...?

Some buddy who knows

I have to agree with Mitch on that one.
Can't imagine there is such a bullet on the market. If you need it to go 2500fps. use a solid.

Rune,

What do you think about the 900 grains woodleigh soft nose.

What speed do you think i can get in a 585 nyati whit 900 woodleigh soft point.

If you can get the 900 grain bullet up to 2100 f/s it is going to expand to a big diameter.

What do you think...?

I have never tried the 900 grain woodleigh sn. My guess would be yes it would most likely expand to a very big diameter.

[This message has been edited by Rune (edited 02-12-2002).]

Rune,

I have been looking at woodleighs home page and they dont show any 900 grains bullets in caliber 577. just 650 and 750 grains.

The 900 grain bullets are "special order"

I have not broken 1900 fps with my 900 grainers, yet, though I am sure it can be done. I just have not spent the time working on it. At 1879 fps, the recoil from the 900 grainers is fierce.

I have hit 2209 FPS with 900 gr. Woodleighs in my T.Rex. I am pretty sure I can get them up to 2250 to 2300 FPS.

[This message has been edited by Mitch (edited 02-13-2002).]

Here is another question: when you are ready to fire, do you seek a comfortable cheek weld or do you extend your neck so there isn't any "rolling" of your head under the recoil?

Mitch,

Have you done any expnsion test whit the 900 grains woodleigh soft nose.

Roger,
When I shoot from the bench I go for that comfortable cheek weld. That go for almost all my shooting. Maximum loads tend to get a bit more tense tough, guess I kinda extend my neck a bit. I am a little afraid that the thumb may hit my nose. When that happends the eyes get big and wet:-)))

Rune,
I hear ya!! To keep a better grip, I re-cut the checkering on the forearms and the grip. I also cut new checkering into the top of the grip between the two side panels. Now when I hold the rifle, my right hand won't slip at all and I maintain contact, keeps my hand from getting into the triggerguard.

I've noticed when I extend my neck down onto the stock the recoil seems a bit "quicker" as my head goes along for the ride immediately. When I just get down onto the stock I "curl into" and around the butt as the rifle recoils.. Watching the videos of Saeeds victims gives and idea. Nowhere near as violent though.
I am curious about peoples' techniques.

To me it looks like none of Saeeds victims have ever fired a weapon:-)))

When I fire a bigbore from a standing position my feet are fairly wide apart and my left hand is almoast at the forend of the stock. I am also leaning a bit foreward.
I feel more in control that way.

Overkill, no I have not tested the 900s for expansion.

Alright so when it is all said and done what is the optimum weight and optimum barrell length, from you blokes who own one and if building it again what would be different.

I see 500 grains .585 weighs 13.25 pounds and he feels it kicks no more than a 9 pound .458 lott.

Is the leupold 2.5 compact the only scope for this brute, we are either considering a 2.5X leupold (if we can get one in Australia) or a set of ghost ring style sights, which the smith who will be building ours said he can make and it will slot into the rear recoil mount lug. What will be best ?

Regards PC

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