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In navigation, dead reckoning is the process of calculating current position of some moving object by using a previously determined position, or fix, by using estimations of speed, heading direction and course over elapsed time

A sextant is a doubly reflecting navigation instrument that measures the angular distance between two visible objects. The primary use of a sextant is to measure the angle between an astronomical object and the horizon for the purposes of celestial navigation.

‘The Sextant’ Rum Release is a step back in maritime history, a masterful blend of four offerings from Justin’s favourite distilleries. A well balanced mix of rums from arguably some of the finest distilleries in the world.

It is well known the British royal navy’s daily rum ration or ‘Tot’ was a mainstay of life upon the seas. Rum sourced for the now legendary tot was often procured from the chain of British colonies around the world. Some of the rums selected for Dead Reckoning releases have been loved and recognised for 3 centuries and have fortified many a thirsty mariner


Dead Reckoning Rum is Australia,s leading independent rum bottler, with 4 releases introduced to the Australian market to date, the Sextant, Mutiny South pacific, HMS Antelope and Barbados tawny cask.

Now with over 3000 litres  ageing in an array of barrels in South Australia in its unique Australian Dry Ageing climate , three releases a year will  become available.

Europen customers will now have a chance to secure Dead Reckoning from july 2022 onwads through Left Hand Spirits. 


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The Creator
Justin Boseley, has immersed himself in rum for the past 20 years; a journey starting as
a deck scrubbing lad with a thirst for Rum and adventure culminated in him becoming a
Chief Officer; driving billionaire’s mega yachts around the world. This life of salty seadog
adventure took him to Rum’s heartland, the Caribbean islands for 6 months a year, every
When he wasn’t at the helm of a yacht he could be found hanging off a bar or at a distillery
sampling the best the Caribbean rum scene had to offer. Upon ending his days at sea there
was only one thing he knew better that navigating around the world’s oceans- that was
Rum. For 10 years Justin has scoured the globe discovering & importing the world’s best
rums into Australia.
Having an intimate knowledge of the Australian market, Justin identified space for unique,
rare blends. Enter Dead Reckoning Rum. An Australian Independent label specialising in

master-mixed rum blends, single casks and some rare, forgotten ‘barn-finds’ of the Rum
world. Justin has his sights set on truly unique and memorable releases by his label..


‘The Sextant is a blend of 4 Caribbean rums from FourSquare (Barbados), Worthy Park (Jamaica), Angostura (of the ‘bitters’ fame) and Demerara (Guyana) all blended into the Dead Reckoning ‘The Sextant’ here in Australia.

Dead Reckoning ‘The Sextant’ is a 5 year old Column still rum from Trinidad (Angostura), a 3 year old Pot still rum from Jamaica (Worthy Park), a 5 year old pot and column still rum from Guyana (Diamond Distillers). To round out the palate Justin has selected a 3 year old pot and column still rum from Barbados (Foursquare).

All the rums used in The Sextant are 100% tropically aged, then bottled & blended in Australia at 49% ABV.

Tasting Notes:

Nose: A huge funky fruit salad – bananas jump at me first, then sweet pineapple and pawpaw. All wrapped up in a creamy egg-nog envelope.

Taste: A deep velvety demerara rush coats the whole mouth at first then a warm spice hit cuts through… and the tropical fruits come through again! A very long finish with luscious stewed fruit with just enough spice to contrast, but not overpower, the delicious lingering sweetness



Mutiny South pacific, aged for 11 years in the tropics then finished for 6 months in a Cream Apera (sherry) cask in Adelaide to undergo Australian Dry Ageing conditions.


Nose: WOW – first thing that hits is that unmistakable funk! Man that is pure banana, papaya and pineapple left to go off (just a bit) in the sun! Deliciously over-ripe fruit and some star anise there as well.

Palate: It’s a deliciously thick and rich – almost syrupy – mouthfeel. An instant hit of raisins then some spice warms the mouth. Waves of tropical fruit alternate with rich spices – very reminiscent of Arnott’s Spicy Fruit Roll biscuits.

Finish: With rolling spiced fruit, mild warmth and lolly-sweet fruit notes that you can chew on for minutes afterwards!


This is the 3rd Dead Reckoning Rum release .

All different but all exceptional and the Dead Reckoning HMS Antelope is great, complex and well balanced combination of flavours and a homage to ‘Navy Rum’.

The HMS Antelope pays homage to ‘Navy Rum’ with a blend of four-year-old pot still Rum from Australia (in fact Australia’s oldest distillery), 3–5-year-old column still rum from Trinidad, three-year-old pot still rum from Jamaica, 2–5-year-old pot and column still Rum from Guyana plus to round it off three-year-old pot and column still Rum from Barbados (Foursquare)

This release pays tribute to a Royal Navy ship with an impeccable WW2 record, and is dedicated to one of the sailors who served aboard her – Justin’s Grandad, Sidney Boseley – This rum is dedicated to Sid

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This single cask, triple–matured, pure rum – no less than 9 and a half years old – is a mix of FourSquare pot and column distilled spirit – tropically matured in Barbados for 8 years in ex-bourbon then transported to Adelaide for some Australian Dry Ageing.. A full year in a 60 year old Seppeltsfield Winery ex-Tawny cask  and then a further 6 months in a high-char ex-bourbon barrel to tame the tannins from the Tawny cask.

Nose: Lots of dark fruits – sultanas, berries, plumbs… plus vanilla and mixed peel. All draped with a wispy web of oak

Palate: Wow! Big mouthfeel powered by a lovely all over medium spiced which then gives way to caramel a-plenty. The tawny cask is pretty identifiable here –with the stewed fruits and biscuit spices. There’s also a pastry note there too, so the accumulative effect is like a Spicy Fruit Roll biscuit in a glass!

Finish: Nice and bold. Easily long enough to chat about it with your drinking buddy. Lots of stewed fruit, caramel, vanilla and a lingering spice that really warms.

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