I forget the question is the 750 grain woodleigh going to hold togehter if you shoot it at 2700 f/s...? Is the woodleigh bullets harder than Hornady...?

Overkill- We wondered where you were! You sure you get 2700 fps out of your 460? I can only get 2610 out of mine before the cases show VERY BRIGHT extractor marks and a belt expansion of .004. If you keep doing that you will not live long enough to shoot any more Moos!
750 gr Woodleigh softs at 2500fps out of the NYATI look like golf balls when shot into wood. They only penetrate about 10-12 inches in our california oak. They generate a whole lot of momentum though.-Rob

Robgunbuilder,

I think the Overkill's chronoraph is frozen This is the reason why he got 2700 fps with his .460 Wby

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BER007
Keep the faith in any circumstances
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BBER007@HOTMAIL.COM

Well I have not got long to wait now I figure, the barrel is the last thing I am waiting on before my .585 can be screwed together and it has been bored and rifled and was gettuing stress releived the other day. I actually can not wait to get this rifle now, I sent the smith some loaded rounds yesterday. Apparently once he gets started he does not muck about and gets the job done quickly.

500 grains gave me the adress for Hawk Bullets the other day and I saw that they list a 560 gr bullet for the .585. If one can get 2500 fps with the 750 gr well 2700-2800 fps should be possible with this "tiny hawk" projectile. I also beleive that thin .035 jacket would be well suited to the "Dangerous Australian" game that I hunt

Overkill I think you should bite the bullet and build that .585 Nyatti or .585 T-Rex straight away. Life is to short to go without what you want.

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Rob, I dont really know about the velocity. it is maybe only 2600 f/s but on the old weatherby cartridges box it`s 2700 f/s.

How much weight is left of the bullet when it have expand? and what expanded diameter is it in mm...?

Thanks for the answers Rob...!

Don't believe everything that Weatherby says.

What I have trouble comhrehending in regards to velocity with the .585 Nyatti is that a 750 grain bullet can be moved at around 2500 fps with 150 grains of powder, while a .50 BMG requires another 80 grains give or take to move a 750 at around 2700-2800 (depending on barrel length). All that extra poder and not much gain, are the .585 velocity's subject to a little "weatherby exageration", or is it a very efficient cartridge???.

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What velocity can be possible to get in a 585 Nyati or 577 Tyrannosaur with 750 grain bullets with a barrel length of 28" or 30"...?

Robgunbuilder,

How much weight does the 750 grain woodleigh bullet have left when you shoot it in the oak at 2500 f/s? and what expanded diameter in mm...?

PC,

What helps the 585 Nyati as compared to the 50 BMG is the bigger bore.

It is about like comparing 264 to 30 caliber.

Now comparea 6.5/300 Wby to a 30/06.

The 6.5/300 would probably top out at about 3300 with 140s. That amount of kinetic energy would be around 2910 f/s with a 180 grin bullet, which is not much faster than a 30/06 with full loads anda 26 inch barrel.

For what it is worth, if you had 585 with 460 Wby case capacity and loaded it to the same pressure (and assuming suitable powder)as what a 460 needs to get 2570 with a 500 grain bullet, then the 585 with 460 capacity would hit 2400 with 750 grain bullets.

Mike

Try a Pachmayr Decellerator pad to tame the heavy recoil. Handles the recoil better than the Pachmayr XXX pad. I have a Ruger NO.1 in 416 Rigby. With original Ruger pad recoil was a bit stiff. After I installed a Decellerator pad I could shoot a box of shell off a bench without discomfort. Really takes the bite out of it. When storing the rifle try not to store it butt down because it can deform over time because of the nature of the rubber. I have installed many of these pads for women shooting 12ga. trap guns. They usually can't believe the difference.

Rob,

Why dont you want to answer about my bullet question? What diameter and how much weight was left after expansion????

Overkill he might not have seen your question yet.

Bob my stock builder is adamant that the triple xxx works better, he replaced the pad from the deaccelerator to the xxx on both his own .375 and .458 and feels it tames recoil a lot better. He states though with any good pad one must keep the rifle kept muzzle down, I have begun doing this although I do not like it.

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PC

I guess that's why Pachmayr makes so many styles of pads. I know that some shooters don't like a Decellerator because the rubber compound is too sticky. To each his own. The other reason to keep firearms stored with the muzzle down is to keep any excess oil from draining down into the action and stock. Some people are over zealous with the lube. Always enjoy constructive criticism from other Smiths. That's how we all learn! Take care.