New Weatherby Caliber: 6.5 - 300 Weatherby Magnum! (Review) 

If Weatherby could figure out a way to take a 76mm Naval gun shell and neck it down to 6.5mm, they would do it.

Wait a minute, the Nosler fan club is going to say it's not a good cartridge because it's belted! Hahhaha

unless you are poking holes in paper the teminal distance on game is about the same. Personally for me anything beyond 400 yds on game is taking chances. I have also witnessed long shots on game not quite hit the mark usually do to the shooter. end results were either lost game or long treks. But to each their own I suppose.

I purchased the carbon mark in the 6.5 300. It does a pretty good job on the rodents around the chicken coup

Owners of a 6.5/300 Wby should understand it for what it is. This is not a round that you are going to use to plink varmints all day with like a 22-250 or similar round. If it is used at the range say only a few times a year including sighting in for a hunt or two, the barrel just may last 8, 9, 10 years or so and even maybe longer depending on how it is cared for during the range sessions in allowing the barrel to cool down somewhat between rounds. Also too, today's more modern powders are somewhat easier on barrels than the powders were decades ago. Same would also apply to the 26 Nosler to a somewhat lesser degree. The 6.5/300 isn't new if I recall. Roy tinkered around with it years ago.............To all you barrel burning detractors of this cartridge....LIGHTEN UP!........It is not your $$$$ buying these rifles for those who wish to own one. And, if the barrels do burn up within say 500 to 1000 rounds, then it is their money NOT YOURS used for the replacement barrel..........

This is good!! I see this and I start chuckling. It's funny. It's the best. The Weatherby loads are like bombs going off. I've been playing with these loads since the 1970s and it's still fun and fabulous today. In those days, buying a Weatherby rifle was comparable to "normal" people buying a house. Big case, the size of a man's arm, with a 6.5 mm bullet screwed into it, and then shoot it from a shoulder-rifle. LOL!!! LOL!!! I love it!! Good job, guys.

Next will be a 6.5-378 WBY MAG.

Beast of a caliber!

Nice cartridge.

Wow, that's an amazing looking round! Also, FYI lasers are not straight indefinitely... even light is susceptible to gravity! Explained by Einstein's theory on general relativity.

I just bought this Cal. in the Accumark V best thing since slice bread shooting the same bullet hole at 300yrds topped it with a Trijicon 5x20x50 accumark green dot

I wonder how a carbon fiber wrapped barrel would hold up to this caliber?

That is a spectacular round. During Covid I try to set that up. Could not find any brass anywhere to purchase. I’m a Reloader guy. Hopefully now the market has produce more brass. If I could find brass to Reload, I’ll buy a rifle. That round Unique ,,I’ve been shooting 270 Weatherby out of my browning bar marked two safari for years. It’s Just time to make a little change on the 6.5 creed Moore family. lol

No doubt about it, the 6.5/300 Weatherby is a sizzling 6.5 cartridge. But for me here in Nevada the 6.5 PRC is fast enough with enough ft./lbs. of energy to drop a bull elk at 500 yards and an antelope at 1,000 yards. So my 6.5 PRC fires from a Browning X-Bolt Pro. Love that mountain rifle. But Weatherby's new Ti actioned rifle is another benchmark for Weatherby and for factory mountain rifles.

I'm aggravated! I have had a 264 WM ever since 1963 in a Rem 700 with a serial starting with "one" and just four digits. All the gun writers beat it down saying that it was over bore capacity and hard on barrels and, Win didn't cut the chamber just right, the throat is too short. Now, 56 years later, that 6.5's are all the rage some are saying they need a hotter 6.5? burp!!!! PS: Mine can still shoot sub-moa, I did not make it a practice to load it HOT!

Boy, Weatherby might wanna sell those with an extra barrel...they just turned them into a consumable.🇺🇸👍🇺🇸

That is a sweet caliber, I love it!

Just the flavor of month .Good luck just hunting for ammo .

this is not new, Alex Hoyer did this in the 60's, i build on in the early 80's. Yes the round was very hard on barrels

More of a novelty round to me and don't get me wrong I like the idea of the cartridge but it isn't practical. I would think of owning one without ordering three barrels at a time and it is very wasteful on powder. The world has changed and we now load for ultra efficient, ultra high BC 6.5's like the Creed and PRC

A word to the wise , shoot 2 shots and let it cool . Then 2 more and let it cool completely ect , ect , ect till you get it where you want it and you will not shoot the throat out ! It’s a hunting rifle not a target rifle ! If you ( need ) to shoot 5 and 10 shot groups then buy a target rifle!…..

The person that ownes this rifle is also the person that is detailed obsessed and likley the preference in their hunting/friend group (opposite of the guy that runs his wifes creedmore).

WHY THE FUCK IS IT BELTED

I bet the barrel life is 1,000rds ,I haven't watched the video yet..

Eastman how is the recoil on 6.5300 verses the300 weatherby cause I have a300 and it's no fun to shoot maybee the 6.5 is better.. Please help

Yes but what does it do that the 300 or 7mm Weatherby does not already do for long range Elk hunter or Prong Horn Hunter? Absolutely nothing of significance if not looking at numbers on paper or a electrons on a computer screen. It is a solution looking for a problem or "me too" novelty of being able to say you have a 6.5 uber magnum! Compared to what Roy Weatherby did in 1944 this is actually a step backwards. Who compares anything Weatherby has designed to a 30-06. The 300 Win Mag is about 30% hotter than a 30-06 and the 300 Weatherby is at least 30% hotter than a 300 Win Mag so it is so many orders of magnitude hotter than a 30-06 that comparison is not remotely meaningful. You might as well be comparing a 30-06 to a 45-70 Govt.....It is an apple to oranges comparison! If you want to compare something tothe 30-06 which is a fatastic all around cartridge with long barrel life maybe compare a 6.5-06 A Square to the 30-06.

What was wrong with the original; 264 win mag, just saying.

So if a barrel last about 800 rounds a box of shells a year 40 years i need a new barrel hell yeah I'll take one😅😅😅

What can you expect as far as barrel life?

Sportsman’s Warehouse $90.00 a box! That’s my idea of fun🤪

6.5-340 weatherby mag

6.5 x .300 rum ??? Got and old 6.5 shiilen barrel in trade. Talk about throught erosion b4 you get a load worked up but it would be fun

Great Weapon 👍 300mag

That round been around for 50 years

I just order one can't wait to use it on cousedeer in Arizona 👍

this video literally told me nothing

Great caliber if you're not shooting more than 20 rounds a year

Please let me order ammo

but doesnt the 3500ft per sec depend which level of ammo u get, i meen the cheaper of the weatherby 6.5 300 ammo is like 3200 ft per sec?

500rds and barrel is toast.

You guys are snipers barrel life might be a 1000 rounds It's something to sell to the younger generation. Don't forget it has to be a 4 pound rifle you gotta climb up mountains. You need at least a 24 power range finding scope

i stick to my 300 win mag 230 gn.. and for fun and deere my 6.5 Creed... less expensive anyways... lol

love this round but at almost $3 per shot for the cheapest 127g don't know if i can justify affording this riffle. I guess my wife will have to give up energy drinks and coffee

its not really new,,,,,,its in very old sierra reloading books,,,,gets your facts right,,,,,,but its a dandy barrel burner,,,,i had a 264 mag rebarreled twice,, decided it was not worth the trouble for the little gain i got over the 6.5 swede,,,,,,,so the 6.5 swedes are at i use now,,,,,,

Not sure when weatherby will figure out that people aren't going to buy a $1,500 rifle and pay $100 for a box of ammo. They need to have hornady make their ammo and have it cost $39.

Im looking to build one of these to shoot 150 accubond

Is belted design still best design? I understand that it works, but is it still best practice in design?

Why the 6.5 when their 308 cal carries about the same velocity?

Is this overboard for a deer hunting caliber?

In need of a new barrel every what, 200 rounds or so? No thanks.

6.5 sherman max is way better still!

A good tool for making hamburger.

What the hell does Weatherby have against barrels

Longevity still to be determined lol

How long is the pipe? Such a cartridge needs an 80-90 cm pipe to accommodate the slow gunpowder in this volume. Thanks for a nice video. In Sweden we are content with 6.5x55. It needs a 72 cm pipe to provide maximum speed.

I dunno I would rather some better performance this thing looks pretty lazy

Barrel burner though

Try 6.5x7mm mag case...the case is alittle shorter than the 300mag .. possibly saving alil barrel life but still would be a hot round

wonder how it do as a 1000yd caliber on the benchrest.....

Great video….just wondering how the gun feels shooting left handed with a right hand cheek peace….maybe the muzzle brake helps...

Whats the barrel life of something that shoots 3500FPS?

What's the kick like compared to a 300 win mag and a 308?

Owner of two Mark V’s here. Meh.

Это 6,5х67???? Уаааууу 👍👍👍

How does the barrel life compare when using creedmoor and weatherby?

What rifle is that ?

my dad says this is to big for me to take hunting. he says get a 6.5 apollo creedmore

Sheesh, if people call the 264 Win Mag a "barrel burner", this thing will be a barrel nuker.

Ill stick wit my 257 wby ... Faster and Flatter..

Fun fact. weatherby didn’t invent the 6.5x300. It was originally called the 6.5 Weatherby-Wright-Hoyer magnum. Designed by Lt. Col. Paul Wright and the first rifle was built by Alex Hoyer of central Pa in the 50’s. The reason the weatherby name was on the original spec of the cartridge was the parent case used is the 300wby mag.

I saw it at Sheels in ND. but any Weatherby dealer should be able to get one

а на русском смогби

what's the price on the rifle and ammunition??

It's an old concept. Way too hard on barrels. If you buy one of these rifles intended to shoot long range for alot of years. You will deffenitly be having accuracy issues after 400 rounds. Told ya so......

velocity KILLS

I have a MK 5 Wthby 300mag Can I shoot this round or do I need a different barrel?

Good for 100 rounds. Then barrel change.

A real nice (and expensive!) cartridge. One thing I like about the cartridge is that it has very little freebore (.2037") thus enhancing its accuracy potential. I've had a number of Weatherby Mark V's; however, in this case, I think I'll skip Weatherby's response to the 26 Nosler and stay with the 264 Winchester Magnum. I don't need the extra 100 fps muzzle velocity - which shrinks even further at distant targets, and uses an extra 15 to 18 grains of powder compared to the 264 Win Mag. Besides, I don't enjoy forking over hundreds of dollars and waiting months for a new barrel to be installed, every 500 to 600 rounds. Shooting Times Magazine tested this cartridge with a 26" barreled AccuMark and only got 3253 fps and 3327fps with 140 grain Nosler and Swift bullets, respectively. Moreover, this way-overbore cartridge needs a 28 to 30" barrel to approach its velocity potential. Who wants to carry around a gun that long and cumbersome? I'm sure (the anti-overbore) P.O. Ackley would also have had some unkind comments about the 6.5-300 WBY, even with access to the slower burning powders that are available today. Even better, my 270 Weatherby shot 3,550 fps with IMR 7828 and 130 grain Noslers in a 26" Shilen barrel. The accuracy life was 2,000 rounds, and more accurate than this barrel burner. The 150 grain Nosler partitions consistently gave .60" MOA.

It’s not that it is flat, it’s the over 24 MOA wind constant meaning less than half the wind favor of a .308. At 500 yards for a 10 mph cross wind it means only 10 inches of favor vs 25 inches of favor.

Funny how things come around, I've shot a 264 Win Mag for over 40 yrs and most people scoffed at it. Also have had my custom 6.5x300 Wby for over 25 yrs, now 6.5 is the greatest thing since sliced bread.

$5.00 a round? no thanks.

It would be helpful to compare 6.5 to other 6.5 cartridges in a graph... and would also be helpful to graph Weatherby 6.5 /300 to other Weatherby cartridges.. At first thought, 3500 fps doesnt seem all that impressive... Weatherby has others that do that speed...?

Back in '74 I saved up $500 for a new Weatherby Mark V in .300 Weatherby, a 3-9 variable scope, four $20 boxes of Weatherby factory loads and the burdensome Washington sales tax. I thought about ordering it in 30-06, but I finally decided to go whole hog with flat trajectory. Especially when I got out on the Montana plains looking for pronghorn and on a couple 400 yard deer opportunities In the Missouri Breaks, I really appreciated what I had. However, I recognise the limits of practicality when it comes to being over bore capacity. 300 Weatherby is as far as I want to stretch it. Putatively, if .300 Winchester would have been an option then in the Mark V, I think that it would have been the better choice. For ten per cent less IMR 4831 capacity, I would have gotten three per cent less velocity . That .300 Weatherby case necked down to 6.5 strikes me as just a fuel inefficient, barrel burning extreme to the point of being silly like unto the .50 SW revolver or a drum magazine on a semiautomatic rifle. Remember that unburned powder is not a propellent and an asset. It is a projectile and a burden.

The big question is why? Expensive to shoot, too small for large game and hard on barrels. If you want a 6.5 get a proven Creedmore. Better yet, get a 300 Wetherby and shoot light, long range bullets, that way you can save your money for beer at deer camp.

I've had a pretty big problem with pidgeons eating freshly planted corn seed out of the ground my homestead is 900 yards away and I thin them out with my new 6.5x300 great gun had to replace the barrel after 2 boxes of ammo

6.5 bullet is to small for mountain goats or bigger. Should only be used on deer or smaller animals. Be a good target gun.