John Dickson & Son, 63 Princes Street, Edinburgh
12 bore Round Action Ejector
no. 5010 (No 2 of pair)
Year of production: 1898

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Heritage Guns' Comment

In the last few years, I have had the privilege to work on several Round Actions, both MacNaughton and Dickson and have become inordinately fond of the type. They are very different in many details from their contemporaries made south of the Scottish border and I am constantly surprised and delighted by their quirkiness.
Gun no. 5010 was built as a light weight game gun and comes complete with its original damascus barrels and a boldly figured replacement stock of excellent dimensions, making it a very desirable gun.
We made the effort to have the barrels reproofed for 2 ¾" nitro cartridges and this combined with the excellent condition of the action and wood make it a perfect gun for both clays and game.

Update April 2018: A packing piece was found to be 'buzzing' under the ribs so the ribs were re-laid and barrels rebrowned. This has resulted in a very slight loss of MWT's which is reflected in the figures below.


The action is of Dickson's triggerplate action design and features:
Traces of original hardening colour in protected places;
Double triggers bolted by a top tang mounted automatic safety slide;
Rounded action bar with Dickson's patent cocking slide, use no. 696;
Gold washed cocking indicators and finely chiselled fences;
Top lever opening, operating a 'Purdey Bolt' by way of a 'Scott Spindle';
Top rib extension with third bite;
Dickson's patent ejectors;
Anson forend catch.
Engraving style Best Foliate Scroll; 'JOHN DICKSON & SON PATENT' in scrolling banner on action bar; Gold inlayed SAFE on top tang; '2' engraved on toplever, forend iron and top rib.
Gun weight 6lb 4oz
Trigger pulls
measure approximately: Front trigger 3 ¼ lbs Rear trigger 4 lb
The damascus barrels are 29" in length, chambered for 2 ¾" (70mm) cartridges and are of brazed 'dovetail' lump construction with soft soldered ribs. There are a few small vestigial pits internally.
Top rib is of smooth, concave game type.
Birmingham reproof for 70mm nitro powder cartridges in 2017.

Approximate barrel measurements at date of publication:

Nominal Proof Size
Bore Diameter 9"
from Breech
Minimum Wall Thickness
Choke Constriction

Right Barre

18.8mm (0.740")
@ 20" from breech
0.004" (Skeet)

Left Barrel

18.8mm (0.740")

@ 19" from breech

0.009" (IC)

The replacement Straight-hand Grip Stock and Splinter Forend are crafted from boldly figured walnut. The forend features a finely engraved steel tip and an inlaid white metal '2'. The stock is finished with a chequered butt, features a yellow metal oval engraved 'E.W.J.' and is lightly cast-off for a right-handed shot.

Boldly Figured Walnut

The approx. 20 lines per inch chequering has been refreshed to its original pattern.
The stock is finished with a traditional linseed oil based preparation as used on best guns by one of the top English makers. This finish uses no grain fillers to achieve its deep, smooth lustre, only many hours of alternate build and flatting off of the surface.

Approximate stock measurements at date of publication:

Pull to Heel
Pull to Bump
Pull to Centre
Pull to Toe
14 1/2"
14 3/4"
14 3/4"
15 1/4"
Drop at Comb
Drop at Face
Drop at Heel
1 3/4"
1 7/8"
2 1/4"
Cast-off at Comb
Cast-off at Heel
1/16" (approximate)
1/8" (approximate)

For the purposes of these measurements, 'Drop at Face' is the 'drop' measurement taken on a line perpendicular to the
line joining the trigger and centre of the butt at approximately 8" from the trigger (front trigger on a double trigger gun).

Patents Exhibited include:
Dickson's cocking patent no. 294 of 1880;
Dickson's ejector patent 10621 of 1887;
'Purdey Bolt' patent no. 1104 of 1863;
'Scott Spindle' patent no. 2752 of 1865;
Scott's top extension patent no. 1902 of 1875;
Anson's forend fastener patent no. 3791 of 1872.