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Double Rifles, Single Shots & Combinations >> 'Classic' Firearms Photos & Archive
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Waidmannsheil
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Reged: 19/04/13
Posts: 2446
Loc: Melbourne Australia
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355209 - 16/07/21 04:12 PM

Excellent results Tony. The 280 Ross is the original high velocity magnum cartridge and your figures prove that.

Matt.

--------------------
There is nothing wrong with vegetarian food, so long as there is meat with it.

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DarylS
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Reged: 10/08/05
Posts: 27005
Loc: Beautiful British Columbia, Ca...
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355229 - 17/07/21 12:29 AM

The important thing is how do they shoot?
Anything over 2,800fps sounds great with a good bullet.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

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Marrakai
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Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia
Re: Model of 1910 .280 Sporting Rifle [Re: DarylS]
      #355264 - 17/07/21 09:31 AM

Part of the rationale for driving these things fast is to make sure the long 160-grainers stabilize, as lighter (shorter) .287 bullets are impossible to find here so not an option.

Accuracy tests are next on the agenda.
Hope its not another year before I get around to it!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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Marrakai
.416 member


Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355573 - 26/07/21 12:03 PM

Managed to squeeze a bit more life out of my file uploader, so for the sake of completeness here are the images of the case-heads/primers from my AR2213SC (H4831) sequence described earlier.



Closer view of the maximum load:


You will all likely agree with the lack of pressure signs, but the feint cratering visible on the 66gr loads (3 on the right) is definitely there. Maybe I'm a sook when it comes to revving these things up, but the rifle is at least a hundred years old presumably, and may have passed through the hands of a fool or two in that time, so who knows?
Better to be careful than dead!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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Marrakai
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Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355665 - 30/07/21 11:01 AM

Sorry guys, should just let this thread go, but I just watched a December 2020 YouTube video on making "280 Ross from 375 Ruger" and my sides still hurt from laughing!

In all seriousness, great that people go to the trouble of videoing this stuff and uploading to the web so we can all make more informed decisions, and if "brett" is a member here my apologies in advance. But.....

There were a couple of incorrect statements that need rectification, the main one being that reformed 300 Win Mag cases "start to separate" at the web on second firing.
Obviously, they may separate on first firing if full-length sized then fired in a rifle with excess headspace, and I can speak from experience that it can be difficult to judge minimum headspace in the straight-pull Ross. I mic the distance between the front of the bolt-handle root and the action wall to ensure bolt is fully in battery on a newly formed case, and set my forming (FLS) die up so that the bolt-handle needs a solid "bump" on a chambered case to go fully home, before fireforming.
One lot of my Norma cases is up to 6th firing with no issues whatsoever!

That said, back to the belly-laughs!

I started chuckling when the guy removed and re-lubed the case for the third time! Then the fourth, then the fifth...
Absolutely pissing myself by the time he did the twelth case removal to relube!!

...and this is not counting the 6 additional removals of case from press to redistribute existing lube around the case with his fingers!

Number of compressions in total to reform one 375 Ruger case?
Fifty!!
Yep, I counted them.

Then it took two lubes of the neck to inside neck-size.

Holy cow! Nearly 8 minutes to do one case.
And that Lee case lube must be bloody cheap in the US to go through it like that!

For the record, when forming 280 Ross from 300 Win Mag, I do about 3 small compressions, turning the case in the shell-holder each time, to get to the shoulder, then about another 3 to get the shoulder down, then maybe 4 or 5 more, rotating the case each time, to finish the job. In practice, I then bump the press "over the top" a few more times while rotating the fully sized case in the interests of concentricity, but that's probably not really achieving anything other than my own peace of mind! About 40 seconds per case!

And the thinnest smear of anhydrous lanolin applied with the fingers, wiped on like you're wiping it off, so to speak, only needs to be applied once at the start.

I was actually contemplating forming-down a single .375 Ruger case to mic the neck thickness and post the comparison here, but after watching that YouTube clip I won't bother!

Who needs the comedy channel?!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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vykkagur
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Reged: 28/11/19
Posts: 223
Loc: Canada
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355677 - 31/07/21 07:42 AM

Quote:

Maybe I'm a sook when it comes to revving these things up...



I had to laugh - unbelievable! "Sook" and "sooking" are common expressions here in eastern Canada, and we get a lot of ridicule for it from people in other parts of the country where the word is apparently unknown. And suddenly I'm hearing it from, literally, the farthest opposite corner of the planet. So I gurgled it: Australia, New Zealand, and Atlantic Canada. Who'da thunk it? Product of our shared Scottish ancestors.

I love this forum more and more every day!

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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 39889
Loc: Barossa Valley, South Australi...
Re: Model of 1910 .280 Sporting Rifle [Re: vykkagur]
      #355687 - 31/07/21 05:22 PM

Sook is a common slnag word here. Certainly when I was young.

"Don't be a sook, stop whining and get on with it."

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"

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Marrakai
.416 member


Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia
Re: Model of 1910 .280 Sporting Rifle [Re: NitroX]
      #355919 - 10/08/21 05:35 PM

Wasn't going to post on this thread again till I had sorted a few things out, but the way I'm going that could be a while. So...
a bit of progress, with a caveat.

The vintage Swarovski scope I fitted to the first Ross sporter is image-moving (I think!) but is not perfectly aligned with the bore so the exit pupil is not centered.
This means I have to align the crosshairs with the target while simultaneously trying to centre the exit pupil, and if I lose concentration I get a flyer, parallax error I assume?

Anyway, long story short, I need to shim the scope to bore alignment, or mount a modern scope for further accuracy testing.

Meanwhile, I pulled the target in to 50 metres to make it easier to concentrate on the sight picture and made the following 3-shot group:



Finished by ringing the 500m gong by holding a couple of feet over.

So, its looking good thus far, but I need to sort out the scope issue. That vintage Swarovski does look the part, so it will be worth the effort to mount it correctly.

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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93x64mm
.416 member


Reged: 07/12/11
Posts: 4202
Loc: Nth QLD Australia
Re: Model of 1910 .280 Sporting Rifle [Re: Marrakai]
      #355921 - 10/08/21 09:04 PM

Nothing wrong with your piece their Marrakai!
Certainly can do its part without question.......brilliant grouping mate!

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