275 H&H Mag Info..

H

HAMMER1DOWN

New member
Hey everyone. I have a friend who is a collector of "pretty" guns. Well he was at a Cabelas recently and bought a 275 H&H. He paid 1000 for the rifle ($999 if you want to get technical. He called me asking about the caliber and ammo availability. Up to that point I only knew of the 300, 375, and the 416 H&H mags. Any info on the caliber, origins, what its comparable to, and ammo availability would be greatly appreciated.

Thanks,
Hammer.
 
It's not cheap to handload either. A set of dies is $150. And they are special order, so if he orders them now, they should show up in 4 or 5 months.

The first thing to do is to slug the bore to determine the actual bore size, because they can vary. If he's lucky, standard .284 bullets will fit. My cartridge conversion book recommends converting from 300 H&H, but I'd look into seeing if a standard 2.5" magnum case could be used.

Best of luck, feeding one is a fairly advanced handloading project.
 
The .275 Belted Rimless Magnum Nitro (H&H) and the .275 Flanged Magnum (H&H) were introduced in England in 1912-13. The Flanged (rimmed) version was for single shots and double rifles.

Known as the .275 H&H Magnum in the US, ammo was loaded by the Western Cartridge Company until about 1939.

As far as I know, none has been loaded in the US, since.

Factory load was a 175gr @ 2680fps.
 
First time I ever heard of a 275 Holland and Holland also. Being a British made rifle and a H&H specialty cartridge. I'm not that familiar it or its ammo. But reality is. If one can afford the rifle he certainly can afford it's ammo. The retailer (Cableas) who sold your friend this rifle probably stocks its ammo. But as said your friend is a collector of fine sporting arms so he probably won't want to shoot this rifle but a few times to keep it in pristine condition. If your friend was looking for a rare or hard to find rifle. He certainly picked out a dandy to meet that criteria.
 
A little further research, I could find no US production rifle ever made in .275 H&H. So, the rifle your friend got was either a custom chambering, or foreign made (likely by H&H).

I could also find nothing on a .416 H&H round. .416 Rigby, yes, but not H&H.

Possible confusion with an H&H rifle chambered for .416 Rigby being referred to as a .416 H&H?

ballistics puts the .275 H&H a bit below the performance of the 7mm Rem mag today. More like the 7mm Express/.280 Remington.

however, I think that is less than the possible potential of the round. Base size is essentially the same as the .300 H&H, but the case is shorter, (2.5" vs. 2.85") but even with the taper will hold 65+/- grains of powder, depending on the bullet used.

The H&H rounds delivered over the top velocities, for the day, but did it without pushing pressure to the limits. They did it with big (magnum) cases, not extreme pressures. The long tapered cases, and moderate pressures had a very practical benefit in hunting, making the cases easier to extract even in African heat.

Original .257H&H brass would likely be Berdan primed, but forming new cases from boxer primed brass should be easily done.
 
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