Saw a real nice custom rifle built on a pre-64 M70 and they're only asking $7,500. <img src="/ubbthreads/images/graemlins/crazy.gif" alt="" />
But the interesting thing for me was the chambering choice - .275 H&H. Does anyone have personal experience with this caliber? Just for grins I'd like to hear what its all about - ballistics, loading, brass making, etc.
Pud
I don't have a rifle for the 275 H&H, but am considering having one built. I've done a bit of research on it and if you care to hear it:
Based on the .375 H&H belted rimless, cut to 2.50" and necked down to take .287" bullets (not .284") by Holland and Holland specs. Woodleigh and Hawk both make .287" bullets. The .275 H&H, 280 Ross, .280 Halger, and 280-333 Jeffery all use this diameter bullet.
Ballistically it is identical to the 7mm Rem Mag. The shoulder is a little more forward and the shoulder a little more steeper, but the case has more taper than the Rem Mag. Introduced in 1911 or 12, I guess it was the original 2.50" Magnum case cartridge.
Depending on who actually built the rifle, they may have used a 7mm barrel blank. I guess this was fairly common in the 40's and 50's.
Takes .287" bullets and not the .284" hmmmm.... a couple follow up questions for you;
Does that bullet require a .284" barrel blank to be bored out or will just using a .284" barrel with no mods suffice? Also, necking down a .375 brass must require some serious inside/outside neck turning?
thanks,
pud
Barnes in "Cartridges of the World" says to slug th barrel because some were built with 7mm[.284]blanks.
The line I posted above about some rifles being made with 7mm blanks, I meant some folks had their rifles made using the .284" bore rather than the .287" bore. These were not factory rifles though. H&H holds firm that, even today, the specs remain at .287".
From left to right
7x57, 7mm Rem Mag, 275 H&H Mag, and 300 H&H Mag
DPhillips, what bullet is that in the 7x57? thanks, capt david <img src="/ubbthreads/images/graemlins/help.gif" alt="" /> <img src="/ubbthreads/images/graemlins/grin.gif" alt="" /> <img src="/ubbthreads/images/graemlins/help.gif" alt="" />
It's a mild steel jacketed Brenneke-RWS TIG. 162 grain.
wicked looking, what does it do? capt david
wicked looking, what does it do? capt david
I'm not sure I understand the question of "what does it do?". The jacket is similar to a sleeve with a crimp on the lead. The exposed lead is more than we see in most of the spitzer shaped bullets in the U.S. The mild steel jacket "supposedly" takes more resistance to deform than copper, creating a premium controlled expansion bullet. It does require quite a bit of soft lead up front to get the expansion started though. They are some wicked looking bullets, no question about that.
For more info:
TIG = Torpedo Ideal
TUG = Torpedo Universal
Dynamit Nobel is the parent company
A little while ago DPhillips gave me some info on the .275 H&H, I still think if I ever get some spare moola, I'm just gonna need matched set consisting of the .275 H&H, .300 H&H and .375 H&H
sitting real Purdy on my gunrack <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Don't forget the 240 H&H Mag.
A little while ago DPhillips gave me some info on the .275 H&H, I still think if I ever get some spare moola, I'm just gonna need matched set consisting of the .275 H&H, .300 H&H and .375 H&H
sitting real Purdy on my gunrack <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Neato idea <img src="/ubbthreads/images/graemlins/cool.gif" alt="" /> The 300H&H has become one of my favorite cartridges. Nostalgic, but useful.
The .275H&H sounds cool, but just too much trouble for my tastes. A 7X57 will have to fill that void. Of course you can always call it a .275 Rigby and stay English <img src="/ubbthreads/images/graemlins/crazy.gif" alt="" />
Terry
You might as well add the 400 H&H and 465 H&H.
You might as well add the 400 H&H and 465 H&H.
I thought of the 400 H&H ... but what is it going to do that the 375 H&H isn't? If I ever want to go after elephants ... I'm thinking a 375 H&H with solids should do the job, and that's a big if. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
Recall seeing a Griffin & Howe Mauser in .275 H&H at one of the Las Vegas shows years ago. Very pretty as usual.
See GunsAmerica.com #976587662, a Shelhamer Mauser .275 H&H $2950, a reasonable price in today's market. Very pretty rifle, IMO with Shel's post WWII style stockwork.
I thought I would revive this thread, since I have recently acquired what I believe to be a Paul Jaeger rifle in .275 H&H. It is built on an FN Mauser action, with a Paul Jaeger windage adjustable single lever side mount and a Zeiss Zielvier scope and the stock has a cheek piece shaped like other Paul Jaeger rifles I have seen and owned.
The headache with this rifle so far is coming up with loading dies. My usually reliable supplier, CH4D, can promise delivery no sooner than two years, so I turned first to RCBS, who has stopped making custom dies, and finally to Hornady, who promised me a set in ten weeks, but only after I furnished them with three fired cartridge cases. The case is quite similar to the 7mm Remington Magnum, so I took it as my starting point. I used my .358 Norma Magnum dies to set the shoulder back as far as possible and then used a set of .300 H&H dies to reduce the diameter of the shoulder, However, the cases still wouldn't chamber. I finally realized that narrowing down the shoulder had pushed some material on the shoulder forward, so I used the .358 Norma die again to force the shoulder back and achieved a case which could be forced into the chamber by applying a good deal of pressure to the bolt handle. The cartridges so loaded fired easily, using a light load of AA 5744 and extracted easily. I then neck sized and reprimed them and used a fairly powerful load of IMR 4350 to make sure the cases truly confirmed to the chamber dimensions. I plan to fire them once more before dispatching them to Hornady.
The H&H cartridge is virtually identical with other 7mm short Magnums, such as the 7X61 Sharpe and Hart, the 7mm Taylor and Robbins and the 7mm Mashburn (short) Magnum, as well as other wildcats based on the .264 Winchester Magnum case, and which are all close relatives of the 7mm Remington Magnum. The main difference in the performance of these calibers and the original performance claimed for the .275 H&H is the availability of modern powders more suited to a slightly over bore cartridge case.
The cartridge interests me chiefly for its historical value. As luck would have it, I am working up cases for another rifle, built by Griffin and Howe on a 1916 Newton action in caliber .35 Newton, a cartridge which appeared at virtually the same time. It proved much easier to make cases for, since I already had some Jamison .30 Newton cases, which only required neck expanding to .35 caliber to produce the desired configuration. Since I already have 1916 Newton rifles in .256 Newton and .300 Newton, this more or less completes the collection. I also have 99 Savages in .22 Savage High Power, .250-3000 Savage and .30 Savage, all Charles Newton creations and all ahead of their time.