Royal Ordnance L5A1 and L23A1 in GURPS

Royal Ordnance L5A1, 76×230mmR (U.K., 1951-1972)

The L5A1 was designed for the Alvis Saladin armoured car when the previous plan to arm it with a 2-pounder 40-30mm squeeze bore weapon was found to be unfeasible. It is a straightforward breech-loading, rifled, medium-pressure gun with a concentric recoil mechanism (essentially a spring wrapped around the rear of the barrel), which makes it relatively compact. For its time, the L5A1 was a powerful weapon, capable of engaging most ground targets.

In addition to HESH (in table, see GURPS High-Tech, p. 170, or GURPS Gun Stats, p. 37) it could fire HE-T (Dam 6d×7(0.5) pi++ with linked 7d×3 [4d−1] cr ex), Canister (Dam 1d+2 pi+, Range 55/550, RoF 1×816, Rcl 1), WP (Dam 6d×7(0.5) pi++ with linked 1d−2 [1d(0.2)] burn ex, 7 yard radius cloud lasting 1 minute), and Illumination (140 yard radius).

Note: unlike the US Army Nomenclature System (where the first version is M_ and the first approved modification to that is M_A1), British Land Service numbers start at L_A1 for the first adopted model, with L_A2 being the second version, etc.

Royal Ordnance L23A1, 76×230mmR (U.K., 1972-1993)

The L23A1 is a lightweight version of the L5A1, using better materials and a hydro-pneumatic recoil mechanism. It has the same ammunition options as its predecessor.

GUNNER (CANNON) (DX−4 or other Gunner at −4)

TL Weapon Damage Acc Range Weight RoF Shots ST Bulk Rcl Cost LC Notes
7 L5A1, 76×230mmR 6d×7(0.5) pi++ 5 3,000/6,500 440/16 1 1(3) 42M −11 6 $50,000 1
linked 6d×4 cr ex
7 L23A1, 76×230mmR 6d×7(0.5) pi++ 5 3,000/6,500 330/16 1 1(3) 41M −11 7 $70,000 1
linked 6d×4 cr ex

Note: maximum range is due to the limited elevation of the mount. Theoretical maximum range is 10,000.

Ammunition Table

Name WPS CPS Notes
76×230mmR 16 $40