Mystery object

[CirclipParticipant @circlip]

Don't really need a pointy end to tie on a bit of string to check verticals. And don't forget, a lathe is far more complicated to set up to ensure hole is EXACTLY central to diameter than a vice (vise) and a hacksaw.

Regards Ian.

[Clive HartlandParticipant @clivehartland94829]

Just to make a point, the original bullet depicted was .9.52 dia. convert to Imperiel at 0.375".

The 0.300 calibre references are not valid.

Regarding hunting in Africa, most big game is taken with one of the following. No.1 or No.2 rifle in 0.500 calibre. S/S, then .458 Win. mag. and I have seen .470 Franz Zodia rifles O/U beautifly engraved.

John Hunter shot elepants with a 6.5 mm rifle, walking up under the head and shooting up vertically and stepping away as it fell.

That said, the .375 is the minimum cal. for hunting the big Five game animals. In 1963 a .375 H & H round cost 15 EA shillings, No one bought a box, just enough to set the sights and 2 rounds for each game animal licensed to shoot.

White hunters used mainly 8mm or .270 cal. for small game for feeding safaris. 12gauge shotguns for birds.

Ammunition was strictly controlled in Kenya, I was limited to 50 rounds of 12gauge and had to go back and have to ask for more, eventually ending up with 250 to buy at one time.

.22 was one 50 round box at a time. Full bore ammo as said on a need basis.

All hunting now stopped in Kenya.

[Mick B1Participant @mickb1]

Posted by Clive Hartland on 09/03/2022 13:57:58:

Just to make a point, the original bullet depicted was .9.52 dia. convert to Imperiel at 0.375".

The 0.300 calibre references are not valid.

…

References to this calibre were made in response to Nick Farr's photo of his round in P2 of this thread, or at least mine were.

Nevertheless I've not succeeded in discovering any .30-06 standard ball bullets of ~172 grains without boat tails, and I've wondered if it's a US-made .303/.311" Mk.VII ball (nominally 174 grains) at the light end of the tolerance range.

Just as I don't think anyone's yet found a .375 boat tail bullet with a conical spire point.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by SillyOldDuffer on 09/03/2022 10:32:57:

Posted by Michael Gilligan on 08/03/2022 17:50:39:

Posted by SillyOldDuffer on 08/03/2022 14:25:03:

[…]

That's why I posted photographs of pointed boat tail H&H .375 bullets …

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Sorry, Dave … Can we please distinguish between ‘pointed’ and ‘conical’

All of the images you have posted have, I believe, ogival shapes [regardless of the sharpness of the very tip]

MichaelG.

No, I meant to draw attention to the shape at the end of the cone – the point or tip.

Bullets and shells often have a conical shape where the curve is defined as an ogive. However […]

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Then I think it's best that I withdraw completely from the discussion

But before so-doing, I must emphasize that a cone has a curve of infinite radius (i.e. a straight line) .. which is what appears to be on the mystery object, and is definitely on the Russian patent.

MichaelG.

[Nicholas FarrParticipant @nicholasfarr14254]

Hi, have to agree with MichaelG about a cone.

Regards Nick.

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