I thought I would compare the 3 Marks of 25Pr Drill Projectiles. The weights are approximate only for comparison.
The Mk1 has a wooden body with brass nose and base screwed together by a steel bolt. Steel fuze cap.
It is stamped: 25Pr 1 DRILL Mc&P over V 2/44.
Made by McCabe & Pomeroy P/L, Melbourne, Vic. It is 435mm long and weighs 8.5kg (19lb).
The Mk2 has a black rubber body with brass base and top. The steel fuze cap screws into the nose, not onto it.
The base has 2 key holes and a lead core. Stamped : 25Pr 11 cMc 1942.
I do not know if this maker is English or Australian. It is 440mm long and weighs 7.5kg (16lb). Note earlier date than the Mk1 projectile.
The Mk 3 is steel made from a converted projectile with the old info barred out on the base.
The body groove is unusual and it has a steel nose plug. It is the heaviest. Green painted top section.
It is stamped: DRILL 25Pr MK3 MO SXIA 5-50.
Made by Maribyrnong Ordnance,Vic. It is 425mm long and weighs 11kg (24lb).
This shows the weight variations between these 3 Marks of Drill projectiles. Mk1 was still made after the Mk11. Maybe the rubber was not satisfactory?
The Mk1 has a wooden body with brass nose and base screwed together by a steel bolt. Steel fuze cap.
It is stamped: 25Pr 1 DRILL Mc&P over V 2/44.
Made by McCabe & Pomeroy P/L, Melbourne, Vic. It is 435mm long and weighs 8.5kg (19lb).
The Mk2 has a black rubber body with brass base and top. The steel fuze cap screws into the nose, not onto it.
The base has 2 key holes and a lead core. Stamped : 25Pr 11 cMc 1942.
I do not know if this maker is English or Australian. It is 440mm long and weighs 7.5kg (16lb). Note earlier date than the Mk1 projectile.
The Mk 3 is steel made from a converted projectile with the old info barred out on the base.
The body groove is unusual and it has a steel nose plug. It is the heaviest. Green painted top section.
It is stamped: DRILL 25Pr MK3 MO SXIA 5-50.
Made by Maribyrnong Ordnance,Vic. It is 425mm long and weighs 11kg (24lb).
This shows the weight variations between these 3 Marks of Drill projectiles. Mk1 was still made after the Mk11. Maybe the rubber was not satisfactory?
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