Hello friends as having a .300 Winchester Magnum and a rifle as sold 300 Weatherby Magnum cartridge I always think that maybe I was wrong. And my question is whether there is much difference between the two rounds fired rifles in the same barrel length. In my case both were 24" rifles.

Thank you

Ovny.

The Weatherby has a slight advantage over the Winchester in velocity but one gets use to the cartridge he shoots and I don't think the Weatherby can do anything the Winchester can't do. Both great cartridges. One main difference is that the Weatherby has a radius shoulder and the Winchester has a tapered shoulder. The neck on the Weatherby is a touch longer than the Winchester thus in combination with the radius allows for a bit more powder when seating bullets out.

They are close enough that there may be more difference from rifle to rifle and load to load than the two cartridges.

The simple answer is the bigger cartridge should be faster no matter what the barrel length is; but unfortunately life is seldom so simple.

I've had/have several .300 Wins with 24 and 26" barrels, and a few .300 Weatherbys with both lengths. In a general sort of way, a .300 Win with a 26" barrel is the equal of a 24" Weatherby. Typically I load the Wins out to the lands in a long mag box and get 3150 fps with 180s in a 26" barrel. The Weatherbys have their work cut out for them to match that; some will beat it some won't. The worst example was a 24" 'Bee that used 8 grains more of the same powder to go 200 fps slower. It was hard to get enthusiastic about that, considerably more recoil with less than nothing in return. That one was sent down the road.

From a handloading and accuracy point of view I'll take a .300 Win in a long box over a .300 Weatherby every time. I've even re-barrelled a .300 Weatherby Mark V and made it into a Win Mag. Its twice the gun now.

For typical hunting, and even out to what is usually considered long range hunting shots there isn't much difference between them. For real long range, I've shot F-Class with a Win Mag and have yet to see a Weatherby cartridge of any sort there. Doubt if I ever will.

Owned three of each: Win mag 26" Sendero, 24" 700 KSS, 24" Ruger 77 - 2 Roys in 24" 700s, and one German Mk5 24".

Except for the Mk5 all go sub-inch at 100 for 5 shots: the now gone Ruger barely so, all 4 700s reliably so.

For the last 25 yrs purposely loaded all of them to 2950 fps with 180s, either PSPCLs or NPs. In WBY brass I burn 5 grains more IMR-4350 to get the same velocity.

The Sendero and Ruger .300 Wins are COL'd to just off lands. The rest are loaded to box mag length.

No difference at the range and no difference in the field (well, duh).

When folks compare the Roy and Win the freebore vs not freebored gets mentioned right out. The long throat does allow for larger charges, but it also guarantees you can load to box mag length.

Looking at the case exteriors, you might think the Roy has alot more capacity. I couldn't reconcile Speer .300 Roy data (RP cases) with most other data, so compared internal capacity of two lots of Roy brass and RP .300 Win.

RP primed Roy weighed avg 265 gr, needed 85 gr IMR-4350 to fill.
WBY (early '70s) primed weighed avg 228 gr, needed 93 gr IMR-4350 to fill.
RP unprimed .300 Win weighed 245 gr, and needed 83 gr IMR 4350 to fill - that's just two grains less than the RP .300 Roy.

To separate a Roy from a Win I'd use the Norma/WBY brass and 200 to 220 gr heads.

First of all thank all the responses received. I read everything I have deduced that having a larger brass Weatherby has the advantage over the Winchester because its internal capacity is superior and has more gunpowder clear. But I also understood that for practical purposes in hunting is possible that the difference in favor of 300 Weatherby is obtained from a certain distance. Something that does not affect because I'm not trained for long-distance shots. And if a big advantage I find the time to recharge to have a longer neck. In order to remain happy with your help

By the way the rifle that I have is a Santa Barbara and I have mounted a humble Burris Fullfield II 3-9x40 .

Ovny

quote:

Originally posted by ovny:
But I also understood that for practical purposes in hunting is possible that the difference in favor of 300 Weatherby is obtained from a certain distance.

The difference could also translate as the Roy throws a heavier slug to the same velocity as the Win. Meh.

I think the difference is just hair splitting, albeit the sort of thing we love to do. Doubt any quarry would be less impressed with the Win, assuming equivalent bullet construction and placement.

And if by "longer neck" you're referring to the Win's short neck being a potential reloader's problem........it's not. Not at all.

In reallity, the difference between the 2 is about 100fps with same weight bullets in same length barrels.
The difference used to be larger, but, better powders have closed the gap.
I have had both, the Winnie stayed, and the Weatherby was sent down the road. I now have a few 300 Winnie's, and use the cartridge for hunting and comp use. With my 26" barreled Kimber 8400, I get 3160fps, with 180gr Accubonds.
With my comp rig, I get 3090fps with 215gr Bergers in a 30" Hart, and about the same in my lightweight 28" Hart with 200gr Accubonds, surprisingly, they are a very good long range target bullet.

I would go the 300 Winnie, the action is lighter, brass is cheaper and easier to source.

Cheers.

Hello, I have always read the difficulty of settling heavy bullets (220-200 grains) in the .300 Winchester Magnum recharge so short of his neck. I unfortunately have not cronografo and I have no records of speed projectiles reach the gun 24 inches from my Santa Barbara. I imagine the boars not notice a big difference between a Weatherby or Winchester. Thanks friends,

Ovny.

I went the same way as Dogleg and 416Rigby. I couldn't get a .300 Weatherby to shoot to my liking until I rebarreled it with a Lothar Walther .300 Win Mag bbl. From the beginning the new combo shot < MOA. I took it along on several Scottish Highlands trips were it behaved very well.

quote:

Originally posted by Andre Mertens:
I went the same way as Dogleg and 416Rigby. I couldn't get a .300 Weatherby to shoot to my liking until I rebarreled it with a Lothar Walther .300 Win Mag bbl. From the beginning the new combo shot < MOA. I took it along on several Scottish Highlands trips were it behaved very well.

Then you have a .300 Winchester Magnum and is fully satisfied with the cartridge ?, not missing the 300 Weatherby Magnum have? Thank you

Ovny.

I never missed the .300 W'by. Since then, I sold the rebarreled rifle but I still have 2 300 Win Mag, a Blaser R93 and a Rem 700 Sendero.

I understand that you have not missed 300 Weatherby ?? Sorry it is that the translator of Google leaves much to be desired.

Ovny.

I have had both and could not tell the difference in how they shot or performed on game. I understand the velocity differences but still could not see or feel much difference. I stayed with the .300WM and sold my weatherby.

The 300 Wby might give you a little more bragging rights among SCI type hunters but Our US military snipers looked at all available cartridges for shooting out past 1000 meters and decided the 300 Win was the best for that purpose.

At typical hunting ranges I have never noticed a difference.

Thanks for all your answers. I feel more satisfied and comfortable with all your opinions and advice. I will enjoy the .300 Winchester Magnum.

Ovny.

I pondered this same question about 7 years ago.

I decided to go with the .300 Weatherby.

My only regret is that I didn't buy it 40 years earlier.

Something I forgot to mention: WBY cartridges reputedly give poor accuracy with boattail projectiles. My personal experience supports this.

Have no idea why this would be so, but I'm certainly not the first - or only - person to make this observation on AR.

I'll try hunt with my 300 WM some wild boar or deer without worry of the cartridge and funny hunting.

Ovny.

quote:

Originally posted by Samuel_Hoggson:
Something I forgot to mention: WBY cartridges reputedly give poor accuracy with boattail projectiles. My personal experience supports this.

Have no idea why this would be so, but I'm certainly not the first - or only - person to make this observation on AR.

Yeah, my .300 Weatherby doesn't like boattails either...


And it shoots similar groups with Hornady 168 gr
BTHP bullets.

quote:

Originally posted by buffybr:

Yeah, my .300 Weatherby doesn't like boattails either...

And it shoots similar groups with Hornady 168 gr
BTHP bullets.

Both my 700s in Roy give 4" patterns with 180 gr Sierra BTSPs. The Mk5 does about 2.5" with them. Have not tried monometals, to be fair.

quote:

Originally posted by buffybr:

quote:

Originally posted by Samuel_Hoggson:
Something I forgot to mention: WBY cartridges reputedly give poor accuracy with boattail projectiles. My personal experience supports this.

Have no idea why this would be so, but I'm certainly not the first - or only - person to make this observation on AR.

Yeah, my .300 Weatherby doesn't like boattails either...


And it shoots similar groups with Hornady 168 gr
BTHP bullets.

Great group...or not???

Ovny.

I think some guns like that kind of tips and others not so grouped some and not others. Like I say silly but that's what I think.

Ovny

Please recommend me weight and type of tip for boar, deer, goat mountains (the latter females). Oh and roe deer. The cartridge 300 Win Mag course.

Thank you

Ovny.

You will be hard pressed to find a better bullet than the 165 grain Swift Scirocco or Nosler Accubond.

I've had trouble getting Weatherbys to shoot boat tail bullets as well. Some do and some don't. TSXs might as well be in their own category, because BT or not they seem to thrive on jump. One of .300 Weatherbys got rebarreled to .300 Win and the one that is remaining stubbornly refuses to shoot the BTs I've tried. It will shoot factory spire points and Partitions, and handloads with Hornadys and Partitions under MOA out to 500 so it's not like the guns broken. Stick 180 NBTs or 180/200 Accubonds and it sprays them out to 3" at 100. I haven't completely given up on it, but it has been back-burnered for awhile. Come spring I'll probably take another crack at it; but really a rifle that shoots Partitions isn't all bad.

There is one advantage to the Wby over the Win. Not one anyone would recommend, but... I know of one person who shot Win Mags in the Wby chamber. I guess he didn't know that was a no-no. I know this because he wanted the cases and their tiny little necks reloaded. he had been hunting with the Winchester mags in the Wby apparently with some success.

Just some observations, nothing more. Over the years I have owned and hunted with both the .300 Win. and the .300 Weatherby. The only real difference I noticed between the two, is that with the same weight bullets, it takes more powder to achieve only a couple hundred feet more velocity from the Weatherby over the Winchester.

Any game shot with either will not know the difference and if properly placed neither will the shooter.

quote:

Originally posted by Quintus:
You will be hard pressed to find a better bullet than the 165 grain Swift Scirocco or Nosler Accubond.

I note the Nosler Accubond and Swift Scirocco. In Spain that ammunition is expensive so I could see. We will have to save for a box of such bullets. How about bullets would function as the Power Point or Core Lock ?.

Thanks

Ovny.

quote:

Originally posted by Crazyhorseconsulting:
Just some observations, nothing more. Over the years I have owned and hunted with both the .300 Win. and the .300 Weatherby. The only real difference I noticed between the two, is that with the same weight bullets, it takes more powder to achieve only a couple hundred feet more velocity from the Weatherby over the Winchester.

Any game shot with either will not know the difference and if properly placed neither will the shooter.

In the end you have to do is put the shot well and go with confidence. Enjoy the lance.

Ovny.

quote:

Originally posted by ovny:
How about bullets would function as the Power Point or Core Lock ?.

You're asking about factory loaded ammo, right? I used 180 gr Rem PSPCLs loaded to 2950 fps for decades. I chose this speed specifically b/c that's what factory .300 Win CLs chrono'd. Worked well, overall.

At impact velocities above 2700 fps (ie., to about 125 yds) this bullet is not what you want for punching elk shoulders or for steep raking angles, and such. We've had them fail to exit large Maine whitetails on quartering chest and broadside neck shots in that impact velocity range.

My understanding is this bullet was designed for the .30-06. At '06 velocities it is superb - from muzzle to as far as I'd go.

RP later designed some bonded corelokt bullet ammo, with which I have zero experience. Restricted to factory loads in a .300 Win I'd look at these.

But standard Corelokts will work well if you don't ask for deep or bone penetration on close shots.

more recoil for a tiny bit more vel...

whichever that was more accurate, or "Accurate enough" would be my choice..

in my case, its a 1903 with an interesting backstory in 300 win .. submoa, factory loads...

most of the difference is
cost of ammo (not a reloader issue)
recoil
between the ears -- as most of the diff is between the ears,

quote:

Originally posted by ovny:
Please recommend me weight and type of tip for boar, deer, goat mountains (the latter females). Oh and roe deer. The cartridge 300 Win Mag course.

Thank you

Ovny.

Onvy, I've had my .300 Weatherby for 6 years and have taken 17 animals in Texas, Montana, Africa, and New Zealand with it. The animals varied from 25 pound African antelope (Klipspringer) to bull elk and red deer. Most animals were one shot DRT kills, and all were shot with either 168 grain TSX or 168 grain TTSX bullets.

I would expect similar results with those bullets in a .300 Winchester.

quote:

Originally posted by Crazyhorseconsulting:
Just some observations, nothing more. Over the years I have owned and hunted with both the .300 Win. and the .300 Weatherby. The only real difference I noticed between the two, is that with the same weight bullets, it takes more powder to achieve only a couple hundred feet more velocity from the Weatherby over the Winchester.

Any game shot with either will not know the difference and if properly placed neither will the shooter.

Crazy, I completely agree with your last sentence.

As for the part that I highlighted in red, "a couple hundred feet more velocity" is significant to me, and isn't that why we use larger cases and burn more powder?

I note your advice. I started the topic because I had pangs of conscience having sold my Weatherby Vanguard 300 Weatherby and buy the Santa Barbara the .300 Winchester Magnum, I had the feeling of having made a big mistake. Your responses have reassured me enough ... now missing completely disappear from my head the idea of ​​changing my Ceska 458 Lott for 460 Weatherby Weatherby.

Thanks

Ovny

Don't look back. I've had 3 Wby and have never liked them. I just prefer the Win.

I only shoot 180 TSX out of mine, which at 3000 fps is for all practical purposes a ballistic twin of a 130 gr 270. If that ain't flat enough for you............

I'm not recoil sensitive, but to me the extra blast of the Wby is just not worth any negligible "less drop." Frankly I can't tell the difference between the two Winchesters (270 & 300), especially not out in the field.

But in .338 I prefer the Wby over the Win as they both kick the same (not for the drop, rather the "alleged" downrange retained E of 250 gr TSX).

I have also the 338 Winchester Magnum. In principle it would be my Remington 700 hunting in our hunting method called "monteria" and 300 WM for stalking. 340 Weatherby would love me.

Thank you

Ovny.

Comparing accuracy, the best I could reach with my original W'by was MOA. Here are 5-shot groups at 100 meters (109 yds) with my .300 Win Mag's.

Blaser R 93



Rem Sendero

Which visor scope did you use??? I've got an humble Burris Fullfield II with 3-9x40 magnification. Great groups of impacts.

Thanks friend

Ovny.

I have a couple of 300WM's. I have always appreciated the accuracy of this caliber.
Peter.