How's work going on the .750cal rifle?

You mentioned earlier that it's on a single-shot action. Which one?

What rimmed cases are you using?

I'm really fascinated by this sort of thing. Please keep us posted.

Lee

Slow progress. Busy with loads for real hunting rifles.

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[This message has been edited by Norbert (edited 07-17-2001).]

Awesome!
Looks like a scaled up version of a 22 rimfire! Is the caliber of the bullet an actual .750"? And what is the weight of the bullet? And finally, what is the proposed velocity of this round? I can compute the BSI of this new cartridge with that data. I predict "Dinosaur Rifle" Class.

I believe I recall a single shot falling block action was in the works. And next I will be wondering how much the gun will weigh. Keep us informed of developments, please.

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Good huntin' and shootin',
RAB

Diameter: .743
Velocity: 1900 f/s
weight: 1000 - 1200 gr
CUP: 32000 - 34000
no rifle at the moment, only proof barrel;
just in an experimental stadium.

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[This message has been edited by Norbert (edited 07-15-2001).]

OMG!

That thing is wild.

Is that a lathe-turned case? What about the bullet?

Man I love reading about stuff like this.

BSI of the 750 Express:
.743 caliber
1200 grain bullet
sectional density = 0.311
velocity = 1900 fps
BSI = 627
This a dinosaur gun and and then some.

K.E. = 9617 ft-lbs

Momentum = 326 ft-lbs/sec

I will let someone else calculate the recoil. I would suggest at least a 7 pound gun weight.

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Good huntin' and shootin',
RAB

Daktari,

There is no recoil. It must be mounted on a carriage!

Don

Do you have any video of anyone shooting it ? Preferrably little guy's who have never shot a rifle before ?

We could make a fortune off the video. I have a program that makes for great slow motion tracking ; It catches every nuance of a shooter going thru a Door's plate glass window............10

Let me say it again:

It is not a .750 Express, but a .750 experimental for some ballistical studies, which are better done with big bullets than with smaller ones.
At the moment there is no intention to use it for a hunting rifle. I am a fan of the all around rifle in .458, eventually .500. I will not go to africa with a bigger caliber.

But there is one advantage: I can say, sitting around the campfire: Mine is bigger.

But what me bothers: I read about a .775 Jeffery or Rigby. Anybody knows about this?

[This message has been edited by Norbert (edited 07-17-2001).]

Norbert,

As I recall, the 775 was essentially a rifled shotgun, though its been a few years since I came across it, so I'm fuzzy on the paticulars.

The .775 Rigby (as I remember it..) is a new version of the 10 bore.
900 grain steel-capped bullet, 1400 fps, gun weight about 12 lbs.
I think I read about tit in a old Gun Digest or somthing. It was promoted as an bad-ass stopper, but I really think it would suck in the penetration department.

Does somebody know more about this cartridge?

Interesting round, Norbert! I suppose you are using a standard CBC brass case in 12 gauge. But what really scares me is that bullet you have sitting on top of it. Haven't seen anything like that since I was in the Field Artillery. Is that a fuze cap? Or maybe a Ballistic Silver Tip?;-)