Considering this one..never had one
Looking to push 300's to the Max for Maxium Damage on Hogs in the Bogg's down here in Cajun Land!Looking at 300's @3000! Should do the Trick!
So what are YOU shooting?

The 6th Edition Ammo Encyclopedia by Michael Bussard, sample page, from 16-page color section of over a thousand pages:



416 Weatherby Magnum - http://ammoguide.com/?catid=174

"Weatherby introduced this powerful .416 Weatherby Magnum in 1989 by necking the famous .378 Weatherby Magnum case up to .416 diameter. The .416 Weatherby outperforms the .416 Remington Magnum and the .416 Rigby by 300 fps and by nearly 1,300 ft-lbs of ..."

It is only a few grains of water bigger than the .416 Rigby,
but it does have a little over a quarter inch of parallel-sided free-bore (pretty short in the throat for a Weatherby).
The .416 Rigby has zero PSFB, short leade only.
Those loading the standard .416 Rigby to .416 Weatherby ballistics are doing so at higher pressures than the .416 WbyMag Pmax/MAP of 63,817 psi.


I have one box of 350-gr TSX factory ammo that cost almost $200 for 20 rounds.
That load was supposedly used for chronographing at the Weatherby Custom Shop, Oehler chrono report for my serial-numbered rifle, a "DGM416WR6B" model built in late 2015.
It has a 24.25" barrel length without brake, 26" with brake:

3-shots at 100 yards: 0.70 MOA
5-yard velocity = 2836 fps
MV = 2846, corrected.
Calculated BC = 0.328 (by chrono to 100 yards), Barnes claims 0.345 BC for whatever velocity range, close enough.

A 350-grain .416 Swift A-frame QuickLOAD with H4350 115.0 grains gave 2930 fps MV and 6670 ft-lbs, barely submaximal pressure of 63,666 psi.
That is for 24.25" barrel, 3.780" COL.

Real velocities for 24" barrel seem to have possibles of
~2700 fps for 400-grainers,
~2900 fps for 350-grainers,
~3050 fps for 300-grainers.
Add about 50 fps for 2-inch longer 26" barrel.

If a 26" .378 Wby is capable of 3000 fps with 300-grainer, maybe a 26" .416 Wby is capable of 3100 fps with a 300-grainer?

That 350-grain TSX factory load at about 2850 fps purports to be very good in my DGM416WR6B.
I would want to use the 350-grain TTSX at about that speed in a hunting handload.

350-gr Swift A-Frame:

350-gr Barnes TTSX:

350-gr Barnes TSX:

300-gr Barnes TSX:

400-gr Barnes TSX:

400-gr Woodleigh Hydrostatically Stabilized Solid Bullet, brass monometal:

The vertical, in-line stack of the DGM magazine box with feed lips will feed anything without fail.
3+1 fourshooter and 8.75 pounds dry/empty.
It deserves some forgiveness for its pushfeed action.
And it deserves to be 8-lbs and 14-oz with the Accubrake installed.



Rip ...

The .416 Weatherby Club must be a pretty exclusive one.
Count me in.
My next safari I'll be totin' the one pictured above,
and a CZ .458 WIN.
What a dynamic duo!

Rip ...

Handloaders can belong to the Weatherby club, too.

the CZ rifles allow hunters to safely load 416 Rigby cartridges to 416 Weatherby levels. We have gotten excellent accuracy and range from 350grain TTSX bullets at 2825fps, 6200ft# muzzle energy. It's a field-dominator load, reaching out to touch some animal . . . far.

The primary "downside" on the CZ rifles is that they use 16.5" barrel twists. Such a twist prevents the use of some of the extra-high BC new generation of bullets. If someone wants to do that, they will need to rebarrel with 1-12" or even 1-10" twist.

my 416 weatherby has a mcmillan fiberglass stock custom fit weight added glass bed throughout and pillar blocks

loaded hot with full on recoil I found I needed the weight and the stiffer the interface between the stock and the gun barrel the better

guarantee it will kill ''anything/everything'' you can make it touch

I don't currently own one, but I think it is the best Weatherby cartridge on the 416 Rigby case.

I never shot anything with it, recoil is pretty stout. Mine didn't have a brake.

Used a 416 Weatherby on one safari, shooting all animals with 400 grain Trophy Bonded Bear Claws, except elephant, with 400 grain Barnes Super Solid.

Worked great.

Yes it's a Killer!
I would like to do one with 300s or even lighter ? for non dangerous game like Hogs n Nutria down here in Cajun Land/Swamps!
(Cutting Edge offers a 225gr 416 Bullet...Yes I can see that one at 3800fps! Like a Lighting Bolt Exploding whatever it hits!)

I started using 100 gr of IMR4350 w/ the 300 gr Barnes TSX. Actually a pretty mild load. Next step will be 110 gr. Haven't found any data for IMR4350 w/ this bullet, but Hodgdon site shows 117 gr start, 122 gr max for H4350 which is very close to IMR4350 in burn rate, so 110 gr should be OK.

Anybody go lighter? CEB Raptor in 225gr?!
Isn't there a program that can get one close with loads and velocitys?....Wanting Ultra Velocitys

Tom, if you wind up with a 416 Wby, I have 2 boxes of 460 Wby loads you could use to reload. The big Weatherby rifles are expensive to feed!

quote:

Originally posted by Saeed:
Used a 416 Weatherby on one safari, shooting all animals with 400 grain Trophy Bonded Bear Claws, except elephant, with 400 grain Barnes Super Solid.

Worked great.

To match the .375/300-gr SD of 0.305, a Walterhog .416/370-grainer is needed.
Shoot it at 2750 fps MV from the .416 WbyMag.
That should be pleasing in all regards.

Heck, even the .416 Rigby might be able to do that, at higher pressure than the .416 WbyMag.

Speaking of pressure,
playing with QuickLOAD,
RL-17 may be great in the .416 Rigby,
but H4350 is better in the .416 WbyMag.
The .416 WbyMag seems to be capable of about 100 to 150 fps more MV (with bullets of 300 to 400 grains) than the .416 Rigby,
if they are both loaded to the same high pressure of 63,817 psi (4400.03 bar), and same COL restriction of 3.750".
I always used the 350-grainers in the .416 Rigby at only about 2700 fps, and hopefully below 60,000 psi.

The .416 WbyMag has 0.224" length of Parallel-Sided-Freebore of 0.4165" diameter before the start of the 1*30'00" leade.
The .416 Rigby has no PSFB, only a leade of 0*54'36" that starts off at 0.417" diameter at start of the throat.
The .416 Rigby is relatively tight-throated compared to the .416 WbyMag,
and QuickLOAD makes no allowances for throating differences.

Of course, QuickLOAD might not be right on the case capacity difference between the two either,
but the .416 WbyMag is obviously a little greater in size.

Yup, I think a 370-grain/.416-caliber bullet at 2750 fps would be most user friendly in a .416 WbyMag.

If I can find a bullet-length for a pipsqueak .416/225-grainer or somesuch, I will tickle that one through QuickLOAD, for varmint grenade guidance.

With any luck we can get this thread to more than 416 pages.

Rip ...

Thanks Biebs!!!

quote:

Yup, I think a 370-grain/.416-caliber bullet at 2750 fps would be most user friendly in a .416 WbyMag.

That is pretty much what I would expect to do with a handloaded 416 Rigby, too. 6200ft#. Not much different from that and our current 350 gn TTSX at 2825 fps. 6200ft#.

Boss caliber.

quote:

Originally posted by SAFARIKID:
Anybody go lighter? CEB Raptor in 225gr?!
Isn't there a program that can get one close with loads and velocitys?....Wanting Ultra Velocitys

OK, SAFARIKID has instigated the nutria-exploder, squirrel-barking, short-range varmint load for the .416 Wby.
Here is his bullet:



Here is a QuickLOAD summary for the factory 24.25"-barreled DGM .416 Wby:

225-gr CEB DGBR-HP R08
BC = 0.140
SD = 0.186
Bullet length = 0.988"
Ogive/nose projection = 0.627"
Seating depth selected = 0.361 (crimped between second and third bands, third and fourth bands inside the case)
Start pressure for solid, soft brass = 1800 psi,
assumed to be 61% of that due to non-bearing between bands: 1100 psi start pressure assumed.
Brass length 2.913"
COL = 3.540"
24.25" barrel length

Alliant Reloder-17: 128.40 grains, 104.1% fill (compressed)

MV = 3616 fps

Pressure = 63,817 = MAXIMUM

KE = 6532 ft-lbs

3600 to 3700 fps is possible, depending on barrel length.
I hope that is not too disappointing.
Afterall, it should make a nutria vanish just fine.

Rip ...

This CEB .416/375-grainer is getting close to being a .416/370-grain Walterhog bullet, but it is a single-loader:



Bullet in above pic looks kind of stubby, but that is the one CEB shows for the MTH-V13.

Here is a QuickLOAD summary for the factory 24.25"-barreled DGM .416 Wby:

375-gr CEB MTH-V13
BC = 0.790 G1
SD = 0.310
Bullet length 1.793"
Ogive/nose projection = 1.285"
Seating depth selected = 0.508"
Start pressure for this monometal copper hollow point will be assumed to be 3625 psi,
as for standard jacketed rifle bullet,
because that is what QuickLOAD defaulted to for the 350-grain Swift AF,
and it surely can't be any higher than for that sticky bullet.

Brass length 2.913"
COL = 4.198"
24.25" barrel length

Norma MRP: 125.4 grains, 104.6% fill (compressed)

MV = 2922 fps

Pressure = 63,817 psi = MAXIMUM

KE = 7108 ft-lbs

Or:

H4350: 110.0 grains, 96% fill

MV = 2779 fps

Pressure = 59,758 psi

KE = 6431 ft-lbs

Or:

H4831SC: 118.5 grains, 102% fill (compressed)

MV = 2754 fps

Pressure = 59,139 psi

KE = 6314 ft-lbs


Rip ...

I kept thinking about a 416 ultra mag on the 300 ultra mag case .Its so close to the 416 weatherby it's not funny .I didn't do it because I had 6 416 rem mag rifles at the time .I found that 26 inch barrels on the 416 win mag add 100 fps with lighter bullets .My favorite bullet was the 325 grain Barnes x bullet at 2800 fps ion in the 26 inch barrels .Now there are vld bullets with much higher bc than
Barnes bullets. I stuck with the 416 rem mag just went with a
26 inch barrel for a little longer
Range but way less cost less recoil and muzzle blast than as 416 weatherby .i would use a 1 in 14 twist barrel and use vld bullets .

Ive never used one but based on observation of its use, it is damned impressive, on both ends I must add...Recoil recovery is slow by comparison, but so what, its probably never going to need it..

I ment 1 in 10 twist with a 26 inch barrel .I bought a ton of 416 weatherby ammo deloaded it to neck down to 338-338 weatherby .I used the 416 bullets in my 416 rem mag rifles which kick about 30 perceent less than 416 weatherby loads

quote:

Originally posted by dgr416:
I ment 1 in 10 twist with a 26 inch barrel .I bought a ton of 416 weatherby ammo deloaded it to neck down to 338-338 weatherby .I used the 416 bullets in my 416 rem mag rifles which kick about 30 perceent less than 416 weatherby loads

dgr416:

YIKES!
Pulling apart 10-dollar-per-round ammo!
Did you have to turn or ream the necks
after necking-down from .416 to .338?
I am wondering what would happen
if I neck-down from .460 or up from .378
to .416?

Rip ...

I bought them on clearance for $27 a box from grafs about 18 years ago .I got 1600 rounds of it .It was reloaded with 410 grain woodleigh bulkets and reloader 22 powder Norma mrp2 .I broke two deloaders pounding that stuff apart .I necked it to 378 first then 338-378.I didn't know at the time but the necks were too thick. it was lots of work but worth it there were no 338-378 brass or ammo to be found back then .I AM INDIDE REAMING some of the brass it was tight in my chamber .I almost bought a 416 weatherby till I watched a guy shoot one it's a cannon .My 416 rem mag are way more fun to shoot and less cost to shoot. If you made a 416 weatherby with a long barrel for vld bulkets with a big muzzle brake and it weighed about 20 pounds it would be fun to shoot .The 416 weatherby is only about 100 fps faster than my long barreled 416 rem mag which is not worth the extra cost and blast .