Those of you so lucky to own doubles in this calibre...I wonder if any of you have done some penetration testing with different bullets...??

There is always the never ending arguments about inferior penetration compared to .577 and the lesser NEs..

What I would like to know is what the .600 will do with the modern Kynoch factory load that duplicate the old 900-110-7600 load AND with the new flat pointed premium bullets at similar velocity.

From what I understand the modern Kynoch will do about 1890 fps from a 24" barrel..

I have done a little testing on a 1 meter block of standing 2"by8" pine wood at 20 meter range...not very scientific but..

2 shots from a ZKK 602 in .458Win., 25" barrel, Federal factory 500 grain Woodleighs:

One bullet blew clean through the block and the other penetrated 97cm..

2 shots from a double in .475NE, 23" barrels, crono average 2158fps, Kynoch factory 480 grain Wood. :

Both bullets penetrated 95 - 97cm..

I wonder what the .600 will do....what increase in velocity can you expect with 26" barrels..?

Forgot to say...all bullets where solids of course..

I have shot a lot of wood over the years it was fun.

I looked at lot of bullets over the years shot into woods.

But all that said it has no relationship to how a bullet preforms on living flesh.

I have shot cape buff, water buff, hippo and moose with my vintage .600 Wilkes along with some plains game. This July I will be in Zim for elephant and two plains game hunts with the same rifle. I've also shot lots of wood but I never measured actual penetration. Yes, Taylor said it is inferior to the .577 but he also said the .600 penetrates enough and that was good enough for me.
Cal

quote:

Originally posted by p dog shooter:
I have shot a lot of wood over the years it was fun.

I looked at lot of bullets over the years shot into woods.

But all that said it has no relationship to how a bullet preforms on living flesh.

+1

These tests shooting into soft pineboards does help to see if there`s any relationship in penetration in regards to the velocity and different bullet types within same caliber. But it doesn`t establish a behavior relation to real flesh.
BTW Pondoro. Try shoot a 500grain .458cal solid lead bullet @ 1500 ft/sec into the same media. That would be in interesting comparison too in relation to more powerfull calibers.

Take a look on this page and in this thread:

http://forums.accuratereloadin...3/m/2861098911/p/158

600 Overkill - a product of Robgunbuilder is a belted, rimless 600 NE but since made for a bolt gun, can be run at higher velocities and pressures.

Both use .620 bullets.

On this page the OP posts penetration in a well-controlled environment of the 620 at various velocities, variety of bullet weights, construction and profile.

Elsewhere the OP has similar tests of .585 (577NE) as well as a whole host of other calibers.

There's a lot to read therein but the bottom line is that at published 600NE velocities, the 600 penetrates as well as the 577NE at its published velocities.

I used my 600OK on Cape Buffalo and never recovered a bullet.
I used my 600NE on elephant and did recover one that had penetrated from the right occipital bone to left maxilla.

Doc, with the VC 600 NE, you can't call it a one-shot kill when you pull both triggers at the same time :-)

Ponder,

I've witnessed the mighty 600 first-hand on several occasions debunk all/most of the theory out there. Anyone that tells you that doesn't penetrate has little experience. Note this is with modern ammunition. Woodleigh/ Wolfgang Romey/Knynoch
It is truly outstanding to the extent that if elephant hunting were to reopen in Botswana I'd trade my beloved 577 in a heartbeat!

What changed my mind? I had the privilege to use the rifle on a previously shot elephant running away in relatively open country and of course seen it in action numerous times. Just his back and head showing. It was way "out there especially for the 600...." The first shot was running directly away, at roughly 130 yards, made it turn and run diagonally across ( sort of quartering away).

As it was getting quite late and not wanting to loose sight of the elephant or recovering the next day I knew the only shot was a head shot. A shot close enough to the brain with a 600 does slow them or knock them over ditto for a brain shot/spine shot. Another point, these beasts move and vanish with astonishing speed!!

So all in the zone, I remember purposely leading the forehead by about a meter and half and just swinging with it!! Well the result was absolutely spectacular to say the least. The elephant just folded in full stride. Don't ask me to repeat it every time but it was one of those shots!


The bullet entry was about 2-2.5 feet behind and level with the ear hole. So it looked like it had squared the brain or at worst the junction of the spine and brain.

Body shots are far more telling with the 600, always get a reaction and normally cause a dramatic effect.

I'm not sure about the theory of all this but a 600 will not let you down on an elephant hunt.

I know full well why Ivan uses one!

As CCMDoc states, the 600 uses .620" bullets as opposed to the .577 which used .585" bullets. That's only .035" difference in bullet diameter so even if the bullet weights were the same I can't think there would be much difference in the penetration of the two.

Also, generally speaking, the .600 uses a heavier bullet than the .577 which would be more than enough to offset any differences in bullet diameter. I think it would never make any difference when it comes to shooting dangerous game. Bob

In my looking through a century plus of double rifle information I have accumulated there is no doubt the .577 penetrates better than the .600 and this is possibly due to the more pointed shaped of the .577 bullet. That said, when the .600 was designed it was made with many sales of bullets. Actually a large number considering the small number of rifles made. Anyway I would guess the .600s blunt nose was made so as to not over penetrate, i.e. penetrate further that the .577, to keep the bullet in the animal. While there were many styles of bullets made, many blunt many with a blunt but rounded nose, none were made with as much of a point as the .577.
For what it's worth…
Cal

I imagine using a modern flat meplat bullet in a 600 NE, like a CEB, would increase penetration, if indeed the 600 NE needs any help.

quote:

Originally posted by nickh:
Ive shot 2 ele with my 600, a tuskless and a bull.

i used both woodleighs and CEB 900gr projectiles.

i didnt get any CEB's back . Got one Woodleigh back.

The frontal area (meplat) of the woodleigh lets it down a little in penetration, but it penetrates plenty and does the job.

The CEB'S penetrate deeper.( complete through)

They both killed the ELE'S DEAD!!

Cal, you will have fun soon!!

cheers

Nick

Am shooting the .600 every week. Hunting ammo is loaded with Woodleigh solids and some softs for plains game. Practicing with Woodleigh softs and cast lead. Powder coated the first .600 bullets yesterday.
Cal

quote:

Originally posted by cal pappas:
-----cast lead. Powder coated the first .600 bullets yesterday.---
Cal

Please post your thoughts/results on the powder coated bullets--
I am also considering this for my DR's

Are you guys referring to moly coating?

Nick

quote:

Originally posted by nickh:
Are you guys referring to moly coating?

Nick

Yes, sir.
Cal

What is your reasoning behind powder coating your cast bullets?

quote:

Originally posted by Zephyr:
What is your reasoning behind powder coating your cast bullets?

Hopefully to reduce or eliminate leading in the bore.
Cal

Perhaps for lower pressures as well.

Actually, I was referring to this type of Powder Coat, rather than moly or boron nitride-
seems some people are able to use these without gas checks at up to mid 2000's--

http://forums.accuratereloadin...891035912#9891035912

quote:

Originally posted by Huvius:
-------
These are plain based bullets as cast which I will size to .410" and shoot at normal cast velocities although I am tempted to run a few at full speed and see how they do. The PC bullets can take full velocity normally but most guys are using gas checked bullets either coated before the check or with the check.
I may throw a lubed wad in there just to protect the base.

They started about .408" and now measure .411-.412" so I might be laying it on a little heavy with the gun.
Sure look nice though.
-----------
I think they are looking pretty darn good!