Both of these use a 1:12" twist barrel.
The .416 Barrett has a case that is a 50BMG shortened to about 3.25" brass length with shoulder sharpened to about 23-degrees.

Barrett is making their own ammo, with brass/bronze .416/400gr "ball" loaded with about 200 grains of a powder rumored to be formulated specifically for this cartridge.

3250 fps from a 32" barrel is claimed by Barrett.

How does the .416 Nemesis compare to the .416 Barrett? Which came first? is the .416 Nemesis from New Zealand?

Here's the only pic I have of the .416 Barrett, second from right, and sitting between the .408 CheyTac and the 577 Trex:



What is the accuracy life of the .416 Barrett or .416 Nemesis, which is also on a necked down 50BMG?

What would be the BC of the Barrett-made .416/400-grain bullet?

What would be the BC of a .416/420-grain SP made by GSC?



Could it be better than the BC of a .510/720-grain GSC SP?
Left to right below:
.510/720-gr
.416/420-gr
.408/385-gr
.395/340-gr


Do we have a new 1000-yard record contender?
Do we have a new 2000-yard record contender?

Does anyone know of any load data for either the .416 Nemesis or the .416 Barrett?

Just to know the BC of the Barrett or GSC bullet would be a great help.

Sumbuddy who know?

Haven't seen anything yet.

But for what it's worth, Lost River claims that its 408 419 grain bullet has a BC of .940 (recommended for a 1:13 twist), and its new J40 .510-773 grain bullet has a BC of 1.062 (for a 1:15 twist barrel). These are both bronze match bullets, so it is my guess that Ronnie has his 416 topped with about a 1.0 BC bullet. And if so, he has destroyed the Chevy Tac.

Heh, heh, the ".408 Chevy Tac" is now the ".408 Edsel."

The .416 Barrett is certainly capable of lower pressure for better ballistics than the .408 Edsel.

Might as well go with the bigger cased Barrett, since the .408 Edsel requires a 50BMG-sized action to stand the bolt thrust at the pressures used with the Gibbs head size.

Requiescat In Pacem to the .408 Edsel.
One proprietary cartridge dies, and another is born, one with a longer life expectancy hopefully.

A .395 Ruger Max and a .416 Barrett ought to make a nice two-gun battery.
Heh, heh.

Fellow New Zealander here and I haven't heard of the 416 Nemesis and I follow the industry very closely. We have lots of home grown wildcats but I haven't heard of the above or the development of one.

Search ".416 Nemesis" here and all that comes up is a Gerard Schultz comment on one thread about his having made the 420-grain bullets for the New Zealanders building the .416 Nemesis in 2005, and trials of it in February 2006, producing 3200 fps with the 420-grainers.

Did they come before the .416 Barrett? Another simultaneous development?

www.ammoguide.com has some info on the .416 Barrett, FWIW:

.416 caliber bullet
400-grains
Bullet length: 2.0"
BC = .943
MV (32") = 3250 fps
ME = 9386 ft-lbs

COL = 4.580"
brass length = 3.266"
gross water capacity = 237 grains
shoulder angle (est.) = 23 degrees 44'
neck length = .466"
neck 1 diam = .464"
neck 2 diam = .456"
base to shoulder = 2.500"
shoulder diam = .728"
base/head diam = .804"
rim diam = .804"

Now we can plot some trajectories with .943 BC,
and some QuickLoads and AccuLoad3's with some deer and varmint bullets.

Every one of the necked down .50BMG wildcats have suffered from the same issue. BURN OUT BARRELS in as little as 300-500 rds. Can you spell plasma torch? a .50BMG barrel lasts between 1000-1250 rds( thats 38lbs of powder by the way) then loses accuracy fast. Its all about the amount of powder your burning and the diameter of the hole its burning in.. The throat and crown go in 400 rds normally. I've seen other versions of the same wildcat and they all perform the same. Good accuracy for 300 rds then a steady falling off. Waste of time unless you are willing to swap out barrels very frequently. Even I won't go to that effort. This from someone who actually has shot enough to burn out .50BMG barrels. The right answer is to go to a necked up .5BMG like a .700 where you can run very high BC 2000gr bullets.-Rob

my good friend Brian harrie designed the 416 nemisis, its pretty lethal, gerard from gs custom has made some proj for this rig
DANIEL

Rob,
I was hoping the .416 Barrett could get at least 500 shots off before having to be scrapped. It is not a screw in barrel. Swaged into an extruded aluminum receiver? I wonder if Barrett can rebuild/rebarrel one of their rifles? A military use of the .416 Barrett would make little sense if they had to rebarrel after 500 shots, eh?

M98,
Thanks for the most info I have heard yet on the .416 Nemesis. I wish your friend, Brian Harrie, could be persuaded to comment here on his development of the .416 Nemesis, load data, barrel life, etc., anything! May your Satterlee actions/rifles be delivered soon.

Given what I've seen of the MilitRY ISSUED GUNS THEY WILL EVENTUALLY SEE 500 RDS. BARRET M82'S SHOT FOR CRAP AND EVEN THE SEALS WERE SATISFIED SO HOW WOULD THEY KNOW? -Rob

RIP
Ican get the info from brian , no worries i touch base with him on a pretty regular bases...youll just have to wait as im off to europe for 14 week this comming monday.....
Daniel

The military wants something lighter in weight and with less recoil than the 50 BMG, so going to a larger diameter, heavier bullet isn't practical. You need a smaller diameter, light bullet to get less recoil in a lighter rifle package, so the 40 caliber is what people are trying to use. The special powders that are being tried are triple-based powders that have nitro-guanine (sp?) added to nitroglycerin and nitrocellulose in an effort to lower the flame temperature while still maintaining the energy levels. These powder formulas have been the standard powders used in artillery, but not shoulder mounted weapons as they have lower energy levels compared to standard single-based nitrocellulose rifle powders like 4895 etc. If/When someone comes up with a proper powder formula, the barrel life will become practical (2-3000 rounds) and the military will actually put these rifles into service instead of buying only test quantities.

quote:

The right answer is to go to a necked up .5BMG like a .700 where you can run very high BC 2000gr bullets.-Rob

How about tightening the twist on a 50BMG and making the bullet longer. This reduces powder charge, increases BC and, with the brakes in use, will make no difference in recoil. This is the principle behind the 295gr .338 we did for the .338 Lapua (1:7" Twist) and it works very well.

M98,
We'll look forward to a report, whenever.

CMcDemott,
I heard somewhere that Barrett had a special powder for their loads. Hopefully the "nitro-guanine" works. Thanks for that info.

Gerard,
How long and heavy could you go on a 50 BMG, and what twist would you use?

Is that the rational behind your 850-grain .510 caliber?

.338/295-grainer SD = .369 7" twist
.510/750-grainer SD = .412 15" twist
.510/850-grainer SD = .467 ??" twist