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Reloading the 300 Weatherby Mag.

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Posted By Posted Date/Time
WesleyB 06-Jan-09 - 11:33 PM ET
Shooting Coach 07-Jan-09 - 12:50 AM ET
halfmile 07-Jan-09 - 06:53 AM ET
Trap4 07-Jan-09 - 09:07 AM ET
hmb 07-Jan-09 - 09:11 AM ET
WesleyB 07-Jan-09 - 09:17 AM ET
HSLDS 07-Jan-09 - 09:29 AM ET
WesleyB 07-Jan-09 - 10:03 AM ET
hmb 07-Jan-09 - 10:10 AM ET
WesleyB 07-Jan-09 - 10:13 AM ET
CalvinMD 07-Jan-09 - 10:25 AM ET
halfmile 07-Jan-09 - 10:36 AM ET
BRGII 07-Jan-09 - 10:43 AM ET
shooterIII 07-Jan-09 - 10:55 AM ET
DK65 07-Jan-09 - 11:27 AM ET
DK65 07-Jan-09 - 11:31 AM ET
RogerNRA 07-Jan-09 - 11:32 AM ET
Shooting Coach 07-Jan-09 - 11:53 AM ET
shadow 07-Jan-09 - 12:20 PM ET
timb99 07-Jan-09 - 01:28 PM ET
RickN 07-Jan-09 - 01:35 PM ET
timb99 07-Jan-09 - 02:44 PM ET
Shooting Coach 07-Jan-09 - 03:14 PM ET
Shooting Coach 07-Jan-09 - 07:17 PM ET
Savage99Stan 07-Jan-09 - 07:37 PM ET
GN7777777 07-Jan-09 - 09:02 PM ET
tom-n8ies 07-Jan-09 - 11:40 PM ET
Shooting Coach 08-Jan-09 - 02:34 AM ET
WesleyB 08-Jan-09 - 09:45 AM ET
Big Jack 08-Jan-09 - 12:15 PM ET


Subject: Reloading the 300 Weatherby Mag.
From: WesleyB
Date: Tue, Jan 06, 2009 - 11:33 PM ET
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Anyone care to share what Powders you use or think is the best. First time for me to reload a 300 Weatherby Mag.

Thanks WesleyB

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Subject: Reloading the 300 Weatherby Mag.
From: Shooting Coach
Date: Wed, Jan 07, 2009 - 12:50 AM ET
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The 180 gr premium boat tail hunting bullet is the way to go on this round. You can get 3200+ fps, which gives it a good trajectory out to almost 400 yards, and a lot of long range horsepower. The ONLY reason to have this caliber is for shots OVER 300 yards.

IMR 7828, Alliant RL-25 or Hodgdon H1000 is going to be hard to beat.

Nosler's 180 gr Ballistic Tip is a very accurate hunting bullet. For big game that can bite back and MUST be anchored immediately, use the 180 Nosler Partition. Forget lighter bullets. At long range, the heavier bullet will outperform them.

Use ONLY the Fed 215 or Fed 215M. This primer was designed for the Weatherby Mags.

This is not a plinker. Without a brake, it will ring your bell. With a brake, use muffs AND plugs, and let others on the range know it is time to gear up.

The 26" barrel makes the 300 roar.

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Subject: Reloading the 300 Weatherby Mag.
From: halfmile
Date: Wed, Jan 07, 2009 - 06:53 AM ET
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And put a bag of shot between your shoulder and the gun.

HM

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Subject: Reloading the 300 Weatherby Mag.
From: Trap4
Date: Wed, Jan 07, 2009 - 09:07 AM ET
Website Address:

Norma MRP always worked the best for me.

Trap-4

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Subject: Reloading the 300 Weatherby Mag.
From: hmb
Date: Wed, Jan 07, 2009 - 09:11 AM ET
Website Address:

IMR-4831. HMB

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Subject: Reloading the 300 Weatherby Mag.
From: WesleyB
Date: Wed, Jan 07, 2009 - 09:17 AM ET
Website Address:

Thanks for the information !! You get alot of good people here that have been there and done that.

Also I see that some loads say powder is compressed?? I see that some powders are spherical and some are long and short pelleted (extruded?) The spherical would prob not fill the case and the long extruded would or even over fill the case so you have to compress it to get the number of grains of powder needed for the load. I read your case needed to be almost full so you have good burn. Where the spherical that meters well is more dense and the case is not very full and get inconsistant burns.

Anything to that? Thanks WesleyB

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Subject: Reloading the 300 Weatherby Mag.
From: HSLDS
Date: Wed, Jan 07, 2009 - 09:29 AM ET
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I tend to over do this one...

I square and true the primer pockets, de-burr the flash hole, fire form and case neck trim for length and diameter... net result is three shots can be covered with a dime when shot at 300 yards (if I do my part) - done it once or twice with five shots too.

I've had good luck with MRP and any of the slow burning IMR powders - I agree you want a full case (I would rather compress the powder than not) and I too am partial to the Federal primers. I've not tried it, but I've a friend who swears by the Vita Vouri powders for this round.

My rifle likes anything from 150 grains and up (cartridge LOA can interfere with really heavy bullets - 200+).

This cartridge has a lot of free bore and playing with how deeply you seat the bullet can turn a lousy round into a tack driver (and vice versa).

You'll need to experiment with your rifle - what works for me may not work for you...

Safe shooting,

David D

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Subject: Reloading the 300 Weatherby Mag.
From: WesleyB
Date: Wed, Jan 07, 2009 - 10:03 AM ET
Website Address:

A wealth of information here...WOW

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Subject: Reloading the 300 Weatherby Mag.
From: hmb
Date: Wed, Jan 07, 2009 - 10:10 AM ET
Website Address:

Find a load where the powder fills the case to the base of the neck. It's easy to check the cases after you drop the powder to see if you have the right amount in the case. And after you seat the bullet you will have little or no air space. HMB

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Subject: Reloading the 300 Weatherby Mag.
From: WesleyB
Date: Wed, Jan 07, 2009 - 10:13 AM ET
Website Address:

HMB does the IMR 4831 do that for you?

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Subject: Reloading the 300 Weatherby Mag.
From: CalvinMD
Date: Wed, Jan 07, 2009 - 10:25 AM ET
Website Address:

H870 MRP H1000 and for the super heavy bullets H4831

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Subject: Reloading the 300 Weatherby Mag.
From: halfmile
Date: Wed, Jan 07, 2009 - 10:36 AM ET
Website Address:

I found IMR 7828 to be the best for Weatherby cartridges. this is some amazing stuff, we had one guy loading a 7 Mag with it to unheard of velocities without pressure signs.

The Weatherby loadings are in the back of the IMR handout book in a special section. If you need it email me.

HM

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Subject: Reloading the 300 Weatherby Mag.
From: BRGII
Date: Wed, Jan 07, 2009 - 10:43 AM ET
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I also found IMR 7828 to be the best for Weatherby cartridges. I load 85 grs. of IMR 7828 with Fed 215M primers, Weatherby brass, and 180 gr. Nossler Partition bullets. They Chronograph 3222 fps and shoot 2 inch, three shot groups at 300 yds, calm day, in my Weatherby Mark V with 26 inch barrel. BRGII

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Subject: Reloading the 300 Weatherby Mag.
From: shooterIII
Date: Wed, Jan 07, 2009 - 10:55 AM ET
Website Address: http://www.norma.cc/sortimentladd.asp?doc=Sort&Lang=2

I reload for the 240 Weatherby Mag and the 270 Weatherby Mag and have found that the most accurate loads are found on the NORMA website. All factory Weatherby ammo is loaded by NORMA. The powders amd primers they use I have found are the most accurate.

Click on the above website.

The info on the website is in 3 differint lanques, so if you surf the site, in the upper right hand corner are three flages, for English click on the British flag.

Stan

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Subject: Reloading the 300 Weatherby Mag.
From: DK65
Date: Wed, Jan 07, 2009 - 11:27 AM ET
Website Address:

7828

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Subject: Reloading the 300 Weatherby Mag.
From: DK65
Date: Wed, Jan 07, 2009 - 11:31 AM ET
Website Address:

sorry for double post --- itchy enter finger...

7828 is great stuff - I really favor it in my 7mm rem mag. I can load everything from low-recoil plinker rounds to high-velocity (very high) deer slayers.

Never shot it in a 300... but I imagine it would do well.

Cheers

drew

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Subject: Reloading the 300 Weatherby Mag.
From: RogerNRA
Date: Wed, Jan 07, 2009 - 11:32 AM ET
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IMR 7828, 180g Speer GS, Federal Magnum primer, and Remington cases. This is the only load my rifle will shoot. I thought I was going to wear the barrel out before I found a load. It will shoot three touching at 100 yds.......Roger

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Subject: Reloading the 300 Weatherby Mag.
From: Shooting Coach
Date: Wed, Jan 07, 2009 - 11:53 AM ET
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If one is going to shoot the Nosler BT bullet up close, it will have issues. However, if one is going to shoot at close in game, one does not need the big 300.

I only wear lace on my shorts when I shoot Skeet. LOL

As far as getting four table spoons of powder in a three tablespoon case, using a drop tube is a standard in such instances.

Years ago (many years ago), I had a MK V Sporter in 300. It needed the obligatory bag of shot between the gun and my shoulder.

I have shot big rifles successfully. I have also sparred with younger, stronger opponents in a ring. I see no need for doing either again. (snicker)

I can still shoot the big guns, but in my doddering old age (63 this spring), I have come back home to the stodgy 30/06 as my most powerful game rifle.

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Subject: Reloading the 300 Weatherby Mag.
From: shadow
Date: Wed, Jan 07, 2009 - 12:20 PM ET
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I have never tried it, but believe that 4831 SG would come very close to what you are looking for. (SG stands for Short Grain.)

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Subject: Reloading the 300 Weatherby Mag.
From: timb99
Date: Wed, Jan 07, 2009 - 01:28 PM ET
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What?

No posts from anyone saying to use this powder or that one because its "Made in the USA?"

Sorry, my attempt at tongue-in-cheek humor.

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Subject: Reloading the 300 Weatherby Mag.
From: RickN
Date: Wed, Jan 07, 2009 - 01:35 PM ET
Website Address:

How fast is the bullet going at 300 yards? Slower than a .308 at 50 yards?

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Subject: Reloading the 300 Weatherby Mag.
From: timb99
Date: Wed, Jan 07, 2009 - 02:44 PM ET
Website Address:

sarge,

The made in the USA thing was tongue in cheek - According to my friends at Hodgdon, nobody in the USA makes extruded rifle powder.

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Subject: Reloading the 300 Weatherby Mag.
From: Shooting Coach
Date: Wed, Jan 07, 2009 - 03:14 PM ET
Website Address:

Dear Fred

The above pic is of three black Remmy field hulls that were picked up at my club. They were factory loads, and nearby is the Cheddite. CX2000 in hulls and in box.

As far as the Ballistic Tip, at 3200, it might come apart on an Elk's shoulder at 50 yards. I am particularly fond of shoulders (yum, yum) and would slip the pill in slightly behind and below. This bullet performs very well when put in the boiler room of medium sized game up to 400 lbs or so. For an 800+ lb game animal I might consider something else.

I only hunt for meat. There are many critters I will not shoot for that reason.

At 300 yards, the 180 gr bullet is going around 2600 fps when it has a muzzle velocity of 3200 fps. No explosive expansion there. For game that can bite back, the Partition is recommended.

In my day, I loaded Magnums for long range performance. Other than what they can do past 300 yards, they are simply not worth the trouble for anything else on medium game. Extra cost, recoil, cleaning chores, etc.

The MK V I had was VERY light. This was 40 or so years ago. It was wicked.

Barnes bullets are pretty good, but the X bullets do not perform well in all guns.

St Marks is now owned by General Dynamics. 7828 is going to be hard to beat for pure speed in a lot of overbored magnums.

I never did figure you were trying to insult anyone. I do happen to agree that the 300 magnums are neither fish nor fowl. They kick hard for precision shooting, and do not have the anchoring power of a medium bore.

If I were in big bear country, I would want something on the order of the 375 Holland with good bullets.

For my taste and region, the 338 Federal with the 210 gr Partition is very interesting.

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Subject: Reloading the 300 Weatherby Mag.
From: Shooting Coach
Date: Wed, Jan 07, 2009 - 07:17 PM ET
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I don't remember Dick, but might have met him when Glock first started making the rounds at gun shops in the 80's.

I have been looking at the TSX. I imagine Barnes got their copper supply straightened out. When the "X" first came out, they were terrible.

I live in Nashville. In Dixie, there is not much game that needs a 30 cal Partition or X bullet. I have been doing well with the Hornady 165 BTSP.

I guess I went back to the Ought Six as much for nostalgia as practicality. I loaded it when I was a kid, and now it seems better than ever.

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Subject: Reloading the 300 Weatherby Mag.
From: Savage99Stan
Date: Wed, Jan 07, 2009 - 07:37 PM ET
Website Address:

Had a fellow worked for me about 30 years ago. He was complaining about how his rifle ruined scopes. I asked him what it was. "300 Weatherby Mag." I asked what scopes he used. Whatever I can find. Told him I'd fix things for a hundred bucks if he had any empties. He said all he ever shot with it was target once a year and deer in Montana once a year. He had five boxes of empties, and I'd assume, five dead scopes.

I bought a set of dies, a box of one hundred Remington 180 grain softpoints and loaded him five boxes of 30-06 level loads. Bought a upper level Tasco, mounted it and sighted it in. Saw him five or so years ago and asked how the gun was doing. "Scope still o.k., have two boxes of shells left".

You don't need a 300 Weatherby for a whitetail.

I do believe your scope should be the equivalent of your gun, however. A good scope will cost about what the gun did. In his case, he's happy and, I'd assume, doesn't shut his eyes before he squeezes (or jerks) the trigger.

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Subject: Reloading the 300 Weatherby Mag.
From: GN7777777
Date: Wed, Jan 07, 2009 - 09:02 PM ET
Website Address:

I have had a couple and have one now-

It depends is the answer

the 300 does best with the slow burning powders mentioned 7828 - 870 and premium bullets if you are shooing elk or beer

an interesting load I had was with surplus 5010 powder

the caliber does well with the case completely full of powder and several powders will do that

some will fill the case up and give you 30/06 level loads- which are fine also

You just have to figure out what you want and then have fun shooting it

regards from Iowa

Gene

PS- dont discount the match bullets - such as the 220 and 240 boat tail bullets- yea I know they wont expand- yada yada- but if you hit bone or get complete penetration in a vital area it doesnt matter much

I have a friend that hunts big game exclusively with those bullets and he has had some very impressive reactions and kills using them

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Subject: Reloading the 300 Weatherby Mag.
From: tom-n8ies
Date: Wed, Jan 07, 2009 - 11:40 PM ET
Website Address:

if anyone needs once fired brass for elk or beer loads I have several boxes for $5.00 each.

tom

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Subject: Reloading the 300 Weatherby Mag.
From: Shooting Coach
Date: Thu, Jan 08, 2009 - 02:34 AM ET
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I know I am older than dirt, but if I were going back in the Magnum rifle business, I would get a 300 and a 375,,, H&H. These cartridges are older than dirt too.

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Subject: Reloading the 300 Weatherby Mag.
From: WesleyB
Date: Thu, Jan 08, 2009 - 09:45 AM ET
Website Address:

I want to thank all of you for your comments and help. Drawing from such a vast knowledge base like the good people on TS.com is a real asset to any shooter. Again I thank you humbly.

WesleyB

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Subject: Reloading the 300 Weatherby Mag.
From: Big Jack
Date: Thu, Jan 08, 2009 - 12:15 PM ET
Website Address:

Tried some serious target shooting with mine on a balmy Sept. afternoon. 180gr at 300 yds, five under two and one half inches, two touching. Even with the muzzle brake, it scrambles you brains a bit. I've loaded it down a bit and seated 150gr Spears for whitetails across open ground. They even print right under an inch at 100. My gun is just too light for that shell but fun to shoot every once in awhile.

Big Jack

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