Artillery shell identification

[dinnertime6]

Good day, just picked these two up from a garage sale last weekend. I have no Idea what caliber or what they were used for. Any info would be greatly appreciated, thanks!

 

[Alpheus]

Whats the diameter of the case mouth? 3"?

 

[wordiestdata]

Looks like a 3" (50 cal) naval round to me.

 

[tootall]

Looks like a 3" (50 cal) naval round to me.

It has 3/70 stenciled on it, so maybe a 3", 70 caliber?

https://www.quarryhs.co.uk/ammotable9.html

76.2x662R

 

[dinnertime6]

Whats the diameter of the case mouth? 3"?

Case mouth diameter is approx 3 1/4" (80mm). I say approximately because they're kind of oval'd and not perfect circles, probably from being banged around.

Thanks for the quick replies Gents!

 

[Brutus]

It has 3/70 stenciled on it, so maybe a 3", 70 caliber?

https://www.quarryhs.co.uk/ammotable9.html

76.2x662R

3" 70 is quite the beast! Was a British naval gun kind of morphed from 4.5 inch naval artillery.

Unlike American classification British specifications outline the true bore size.
3"70 was effective in AA role up to 55,000 feet.
HMCS Terra Nova had 3"70 in forward twin mount the American 3"50 twin mount in the aft. Dual turrets because no Sea King or flight deck.
The 3"70 was considered very adequate in possible shore bombardment.

Edit: Why twin turrets you ask?
Circa 1958 NATO naval doctrine these light cruiser/heavy destroyers protected the fleet carrier with adequate guns against air attack.
And the other ASW destroyer escorts protected the fleet from submarine attack with helicopters/sonarbuoys.

 

[CV32]

Here ya go:

United Kingdom / Britain 3"/70 (7.62 cm) Mark 6

 

[dinnertime6]

Excellent, thank you very much for the info gentlemen. I plan on milling a couple dud projectiles and keeping them in the basement bar.

Cheers,

Mark

 

[Grizzly Adams]

Excellent, thank you very much for the info gentlemen. I plan on milling a couple dud projectiles and keeping them in the basement bar.

Cheers,

Mark

Some accurate measurements and a wood lathe for that size. My humble efforts with my metal lathe.

Grizz

 

[Beater]

canadian navy 3x70 is all ive ever heard them called

they make good wind chimes. a scrap yard up north of sasketoon had truckloads of them at one time i bought 30 i think