Home Forums Hunting & Shooting Express Rifles and Big Bores Only .465 H&H

Anyone have some info on this cartridge......I have seen Chuck Hawks page and African Hunter.....looking for some hands on info???

Thanks

I know this doesn't help you as you've seen it. Thought I'd make it easy for others:

Recognizing that most hunters today prefer a bolt action dangerous game rifle and not all are satisfied with the performance of the industry leading .458 Winchester Magnum big bore cartridge, Holland & Holland have introduced a new .465 belted magnum cartridge. The new .465 H&H Magnum is a cartridge with performance on the order of the .450 Watts Magnum or .458 Lott, but which operates at lower pressure and is designed specifically for the extreme heat of the sub-Saharan African hunting environment.

The .465 uses the same .468", 480 grain bullets as Holland's successful .465 Nitro Express elephant rifle cartridge for double rifles. The new .465 H&H case is based on the oversize .378 Weatherby case. It uses a .603" diameter rim and belt. Overall case length is 2.894" and the standard cartridge overall length is 3.50". These dimensions are based on drawings released by H&H.

The factory loaded bullets are to be supplied by Woodleigh of Australia. These will be the same 480 grain solid and Weldcore soft point bullets sold to reloaders and used in .465 NE factory loads. The sectional density of these bullets is .318, and the ballistic coefficient is .407-.410.

Holland & Holland factory load ballistics call for a 480 grain bullet at a muzzle velocity of 2375 fps and ME of 6013 ft. lbs. At 100 yards the figures are 2143 fps and 4905 ft. lbs. These ballistics pertain to a rifle with a 24" barrel.

Holland & Holland trajectory tables, computed for a rifle with a telescopic sight mounted 1.5" over the bore, show that if a .465 H&H rifle is zeroed at 175 yards, the bullet will deviate no more than 2" above or below the line of sight from the muzzle to 200 yards.

At the present time I can find no reloading data for the .465 H&H Mag. Presumably, powders that work well in the .458 Lott would also work in the .465. These would include H335, H4895, IMR 4064, IMR 4320, RL-15, and rifle powders of similar burning rate.

Note: A full length article about the .465 H&H Magnum can be found on the Rifle Cartridge Page.

Yes I am thinking of putting one together. Would be a nice step up from my old .375.

Sorry, I can't help. Some here have a lot of experience with the big stuff.

Sky,

I check with Holland's Tech Director each year at SCI, and they are making haste slowly. Earlier conversations resulted in the African Hunter articles. Wolfgang Romey is making ammunition, and H&H has one or two rifles loaned out. I understand one PH killed five elephant with the first six shots from one of the loaner rifles.

The .465 H&H is two steps up from the .375 H&H, I would go with the .400 H&H for one step up.

What other questions do you have?

jim

WOW! love them Holland & Holland Rifles ! UM UM UM goog stuff!!!

Jim.....thanks for the info. I had hoped to find someone that had built a rifle chambered in this cartridge and done some reloading for it/used it. Sounds like they are still few and far between and little or no reloading data would be available.

I had thought about the .400, which is a .411 as you know. Not much to be found on it either. It exists, there are a couple H&H rifles out there.....but no one seems to have built one and reloaded for it.

Sky,

John Ricks built at least one .400 H&H and posted his reloading data on the Internet. It was on the AFrican Hunter forum, and at least one other forum. You might try looking at AH.

jim

Jim.............Thanks. I have been on there but obviously was not looking in the right place. Surfing challenged..........or maybe a lack of patience.

I willhave another look.

Sky,

Try checking the nitroexpress.com boards too for John Ricks' report on his .400 H&H tests.

jim

Whenever I get to London, I always stop in at the H$H showroom. Unfortunately, I am not permitted to even handle a cartridge (no ammunition permit), but I saw a 465 H&H cartirdge about a month ago. The salesman did not have any details on it, but it sure looks sexy! I collect cartridges and absolutely MUST have one for my collection.

Blaser is reputedly going to offer a 400 H&H barrel for their R93 this year.

Gdv

The .465 was a somewhat accepted big bore double rifle caliber in its day and it is still a viable option for a good double rifle, but not particularly popular..If I was to find one at a good price I would jump on it and just use it..

Holland stayed with their house style for the case shapes for the .400 and .465 H&H cartridges, and went with their history for the bullet dimensions. The .400 H&H uses the .411" bullets as Holland used for their .450-.400 guns, and the .465 H&H uses the .468" bullet as was used in their .465 Nitro Express (Wolfgang Romey uses the same Woodleigh Weldcore softs and solids as the old NE cartridges in the ammo he is making for Holland).

jim

I don't get it! .468 bullets? Why bother? I mean, what's
wrong with the .470 nitro express? What will the .468 do that
the .470 won't?

Could it be that the .465 NE is the answer to a question that
too few people asked?

Any enlightenment would be deeply appreciated.

The 465 originally came about because of the British Colonial fires they were into at the time. When the uprisings got worst, Brit guns and ammo were captured and used against them. At the time, the Brits used a 45 round so the ones in power "out-lawed" all 45 cal rifle cartridges and thereby eliminating using 45 bullets for loading them also. In today's shooting world, they're all the same if between 40 and 58 cal.

Fang,

The Nitro Express cartridges were developed by the British double gun makers at the end of the 19th C/beginning of the 20th C. Some were proprietary to the maker like the .465 NE, and some were released to the trade like the .470 NE.

Comes the 21st C and Holland decides to develop a pair of magazine rifle cartridges for their own use, and which they also released to the trade so others can chamber for them too. They used the same bullet specification as the older double gun cartridges, but different brass (shape similar to the .375 H&H with belts and lots of taper).

The .465 NE was popular with some double rifle elephant hunters, Pondoro Taylor for one.

jim

Sky,get on to Geoff McDonald of Woodleigh bullets and ask him yourself,He's forgotten more about big bore cartridge development than we all know(www.Woodleighbullets.com.au)I'm sure he can help you,after all he is an Aussie!