Yes. See the following links for more info:

AR thread

some load data & history

George

Damn Frank! You need help with this affliction.

And my serious case of envy isn't going to help anything at all ;>

How's it going guy?

Am in New Brunswick at the moment. Should be in next week. Anything planned for the hunting season?

I just acquired a Model 1910 Mannlicher-Schoenauer 9.5 rifle(take-down) marked 43 gr. 270 max. Is this a true .375 caliber ? What modern bullets can I load for this gun, and can anyone provide me with some good loading data ? Where can I purchase brass ? The gun is in very good condition. Thanks for your help.

I had one of those (hell, you may have the same rifle now) about ten years ago. It is a true .375 caliber. I used Hornady 270 grain round nosed bullets. It is called (if memory serves) the 9.5 x 57 in Europe, and the 375 Express Rimless 2 1/4" in England (Bertram sells brass). You can make brass by running 8 x 57 brass through a FL sizer. RCBS makes a set of form dies for 30-06 brass, etc. I forget what powder I used. There have been a couple of blurbs in Handloader over the years on this cartridge and the 9.3mm version. Send me a PM, and I'll see if I can find my references. I think I packaged my load book pages up with the rifle when I sold it. It is a pretty nifty rifle, but I am too hard on my gear to be trusted with a piece of history like that.

Anyways, make sure you have a recoil pad on it, or under your shirt.

JCN

Frank Beller,

You have a beautiful rifle and you wont find too many bolt actions that are smoother to operate or more easy to carry around.

Good hunting!

Hello Frank. I can offer one load for this cartridge that I have actually used on deer, although not in the M-S rifle. I have a 700 mountain Rifle rebarreled to the 9.5x 56.7 M-S. I settled on the 270 grain Hornady spire point with 47 grains of IMR 4064, and CCI large rifle primer. This is in 35 Whelen resized R-P cases at an overall loaded length of 3.18 inches, with no crimp. The load cloverleafs at 100 yards. I used Redding loading dies to form and load. Velocity is 2250 from the 26" barrel, I suspect the rifle with scope is 2 pounds heavier than the 1910 rifle. To tell the truth the one deer I got with it at 65 yards looked as if it had been shot through the shoulders with anything non-magnum from a 7-08 on up. I would use a recoil pad at the bench, but a hunting coat is fine for the woods. This is a very good cartridge of deer, if you check making, accuracy, and related. Very like a 358 Winchester. Regards, ned

Found some of my notes.
A lot of these rifles came from the land of my ancestors over to England, got proofed, and were sold to soldiers, and other traveling hunters of moderate means.
Your rifle was designed to shoot 43 grains of Cordite for 2100 - 2150 fps. Plenty of recoil to go around. If your rifle has a steel butt plate you are in for a treat. The classic load was a 1:1 substitution with IMR 3031. I tried working up from 42 to 44 grains of IMR 3031 as per Cartridges of the World . So so accuracy. I had better luck with IMR 4064. My shots were centered at 47 grains with reformed 8 x 57 M brass. I used Rem 9 1/2 LR primers. The big variable will be internal capacity depending on what caliber and brand of brass you start with. Should be safe to start at 44 grains of IMR 4064 and increase a grain at a time up to a max of 48 grains.
Ken Waters did a nice article on the 9 x 57 in Hanloader #170, pp20. As usual, he gives a good overview and provides some historical perspective. It is amazing how much guys like him know, and they learned it without aid of the internet.
Now that I'm old enough to appreciate a nice rifle like yours, I can't see the sights very well.
JCN

I found some more notes this morning. I'll pass them on and then shut my yap (on this subject, anyway). The 9, 9.3,and 9.5 by 56 -57 MS and M cartridges were developed because soft point weren't so good in those days. To get better killing effect in such a relatively small package bullet diameter was increased.
The 9 and 9.3 versions were more popular on the continent. the 9.5/375 version was more popular in the British Empire.
A MS chamber may be a touch tight for a Mauser or American case. If that happens you can swage the parent case down with a small base die (holding the case in a shell holder that has been milled down as thin as possible).
JCN

One more question on the Mannlicher-Schoenauer - everything matches on the gun serial #'s - barrel, action, stock - except the number on the spoon bolt handle. I've seen this before on some English rifles; does this mean that the bolt is not original ? It sure fits perfect and works VERY smoothly if it's NOT the original. Anyone have any idea ??? Thanks. Mike, send me an E-Mail when you get time. I'm going to Wyoming in Sept. with Tom Kessell for pronghorn. We need to shoot before long. We shot today at Kessell's farm.