Once completed, the SBF returns to the sustained rate of fire
Known as the Caesar the new system features a 155/52 mm gun and a semiautomatic loading system that allows the crew, made of five artillerymen, to keep a sustained rate of fire
of two to three rds/min with a maximum rate of six.
A sustained rate of fire
of four rounds/min, up to 150 rounds, can be achieved depending on the charge.
The advantage of box magazines goes beyond maintaining a sustained rate of fire
. More importantly, they provide the ability to easily switch to different types of ammunition.
The objective weapon requirements are similar to the M252 in other respects--the same 83-metre minimum and 5935-metre maximum ranges, the same 30 round-per-minute maximum and 16 round-per-minute sustained rate of fire
, and a tube life equal too or greater than the present 10,000 rounds.
The Bighorn can fire a burst of four rounds in less than 20 seconds and is capable of a sustained rate of fire
of twelve rounds per minute.