.300 H&H Magnum

Roro

Well-Known Member
Anyone here have any experience of the .300H&H magnum ? Just wondering what its like as a round, and is factory ammunition available, and at what cost ?
 
yes, second hand through a friend that has one
excellent round
factory ammo available but prohibitively expensive if you can get it
Lots

reloading is the bets option but brass is hard to find

get a win mag or similar to be honest unless totally set on it
 
I've got a .300 Weatherby Mag, think I'm correct in saying that Weatherby based his cartridge on the 300 H&H (or was it the .375 H&H?:doh:) Anyway very good cartridge, but does tenderise the shoulder a bit!!

Reload for it to make it cheaper to run, but at 88gr of RL22 per shot, it tends to add up!!

IMG_0284.webp

Left to Right .22lr, .243 win, .270wsm, 30-06, 300 Weatherby Mag

Ade
 
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The 300 H&H is a good round but if you are buying performance, not collectability, buy a 300 Winchester Magnum. ~Muir
 
I have both the Win and the double H and have done a bluudy lot of online comparisons/research etc and while the 300 H+H will stick right with the Win (H/Load`s) it according to the ballistic programs will actually outdo the Win with the heavier bullets..250 grain etc.
That`s what I will look at having loaded (250 grains) for a bit of a difference to the usual 180`s I am running in the Win and the .308 Norma.
I am sure that there will be some "oomph" with the 250`s.
 
I have a westley falling block action, that i would like to build into a hunting rifle, the favourites so far are the .303 british, or for more wallop, the .300 H&H. Its a british action,mhas to be a british calibre by rights really doesn't it ?
 
If you are building a single shot on a falling block action, just put on a 26 inch barrel and your .300 H&H will give you enough velocity to be indistinguishable from a .300 Win Mag. Don't know you if you are shooting game or punching paper for fun, but there are a lot of good bullets from 175 to 208 grains for long range target work. Above 208 grains, you need to be shopping for a .338 Win Mag. Sounds like you want a .300 H&H. Don't worry about it disappointing you.
 
Above 208 grains, you need to be shopping for a .338 Win Mag. Sounds like you want a .300 H&H.

Interesting that old Chuck has these figures on his pages,the results surprised me too and if accurate then the H+H is a better performer with heavy pills than I thought.

"The .300 H&H can exceed the maximum velocity of the .300 Winchester Magnum by about 75 fps with the 250 grain Barnes bullet in front of a maximum load of 67.0 grains of H4831 powder. This load in the .300 Holland gave a MV of 2,650 fps vs. a MV of 2,574 fps for the top load with any powder for the .300 Win. Mag."

And then he suggests the below on his page re the 338 wm.It was the only 250gr info I found.

"Federal's Premium Safari Rifle load pushes a 250 grain Nosler Partition spitzer bullet at a MV of 2,660 fps "

I also have a .338 WM so its not that I`m going in to bat for the double H out of loyalty at all like some Ford owners do lol!
 
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I have a westley falling block action, that i would like to build into a hunting rifle, the favourites so far are the .303 british, or for more wallop, the .300 H&H. Its a british action,mhas to be a british calibre by rights really doesn't it ?

Not just British but I'd say you need a Westley cartridge as well. Look at the 318 Westley Richards. You can use 30-06 brass and if you get it with a .338" barrel bullets are easy to get. Essentially it's a 338-06.
 
Interesting that old Chuck has these figures on his pages,the results surprised me too and if accurate then the H+H is a better performer with heavy pills than I thought.

"The .300 H&H can exceed the maximum velocity of the .300 Winchester Magnum by about 75 fps with the 250 grain Barnes bullet in front of a maximum load of 67.0 grains of H4831 powder. This load in the .300 Holland gave a MV of 2,650 fps vs. a MV of 2,574 fps for the top load with any powder for the .300 Win. Mag."

And then he suggests the below on his page re the 338 wm.It was the only 250gr info I found.

"Federal's Premium Safari Rifle load pushes a 250 grain Nosler Partition spitzer bullet at a MV of 2,660 fps "

I also have a .338 WM so its not that I`m going in to bat for the double H out of loyalty at all like some Ford owners do lol!
I have friends with .300 H&H, but none have tried a 250-gr bullet in it. Reloading manuals give more like 2,560 as maximum with the Barnes Original RN. H-4831 is a great powder in that case.

No mistake that the 220 and 250-gr RN bullets will give a lot of muzzle energy for hunting big game, the really huge selection of long-range match bullets, which work so well in the .30-06, also make the .300 H&H into a much better cartridge today than it was 60 years ago. The .338 has sleek bullets in 225 to 250 grains, with much more reach because of that. My heart just goes to putting a .300 H&H tube on a WR falling block action.

I must confess to reaching for my .375 H&H when wanting a 200-plus yard rifle tossing 225 to 250 ( and 260 and 270 ) grain bullets.
 
Thanks for all the replies, great forum this. The problem is here in ireland anything over .308" is restricted. This means the licence application is processed by chief superintendent, rather than by the usual super. Doesn't sound too bad, but its a pita. Also reloading is not really allowed over here, apart from a "pilot scheme" at one range. So factory ammo is really the only way to go over here.

I thought there might have been a resurrgence in interest in the .300H&H after Craig Boddington had that run of Ruger no.1's made a few years ago. But i suppose it would take more than that.
 
rt just goes to putting a .300 H&H tube on a WR falling block action.

I must confess to reaching for my .375 H&H when wanting a 200-plus yard rifle tossing 225 to 250 ( and 260 and 270 ) grain bullets.

The old 300 H+H does illustrate that even with all of the 'modern' powders/projectiles etc that it really holds its own.

I have a 358 Norma mag that I carry quite a bit and it certainly has 'oomph' as Chuck shows "The Norma factory load uses a 250 grain Woodleigh Weldcore bullet at a MV of 2799 fps and ME of 4350 ft. lbs." (.358NM)
yet the double H isnt that far short of that with a 250 grain pill!

What a grand old British cartridge indeed and I do hope to take a few deer with mine this year.
 
Superb African plains game calibre.
A real classic. I have taken Oryx, Wilderbeest,Waterbuck
and smaller game like warthog and Impala.
Likes 200grn bullets my preference has been Swift A frame for Africa. Will handle heavier bullets better than a
Win mag imho.
 
I have a westley falling block action, that i would like to build into a hunting rifle, the favourites so far are the .303 british, or for more wallop, the .300 H&H. Its a british action,mhas to be a british calibre by rights really doesn't it ?
Returning to these constraints, I would recommend first finding out what cartridges fit the extractor. If it is a .303 rimmed, then build a rifle based on that. If a .300 H&H fits, build that.

Contact Westley Richards and get the history of the action and any rifle built on it.
 
i used to use one in Africa for years it was a old Westley Richards it was superb for feeding like all those long old cartridges (that was what they were designed for)i used to reload for it so with modern slow powders you could get it up to modern velocities with a less sharp apparent felt recoil superb accuracy and remember only the bullet kills
 
I used one once many years ago. I don't know the bullet weight but recoil was very soft for a big cartridge, the shallow tapering neck.
 
Roro..you could also consider .300 H & H Rimmed. However with both it and the standard belted .300 H & H I'd check how much "meat" that leaves in tbe chamber walls where it is threaded to fit the action. Both cartridges are very wide at the base and with the old blackpower based rounds the pressures weren't that great to be an issue. With the nitro era .300 H & H cartridges it might be. I don't know.

As often the best advice (other than my advice LOL) is from Southern. But by falling block do you mean like a Ruger No1 or Martini? If the latter the "mend on the bend" might stymie a .300 H & H. I did have a WR .300 Sherwood and that was quits nice. Also .32-40 was, oddly, a chambering offered by British makers. Maybe to sell into those colonies where .303 was prohibited from civilian ownership?
 
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