The Slammer (Sholef) is a 155mm self-propelled howitzer variant of the Merkava with automatic loading system. The gun has a range of 40+ km with ERFB-BB. Two prototypes appeared in 1984 and 1986 but didn't entered production.

The Slammer is a heavily armored artillery gun mounted on a modified Merkava Mk 1 chassis. Many of these vehicles are Merkava Mk 1 that were retired after the Merkava Mk 2 and Merkava Mk 3 came into service. The Slammer has a long 52-caliber gun barrel that allows +10% range. Reload speed may be decreased to 1 for one minute every 10 minutes through use of an automatic loader. Ammunition racks are large. The Slammer is ready for autonomous operation (without an FDC) if the target's location is known within 15 seconds of a halt, using GPS, inertial navigation, and an internal fire control computer. The Slammer is also capable of direct fire on the move.

Autonomous Operation 
Rate of Fire: 9 R.P.M. 
75 Rounds on Board 
Automatic Loading System 
On Board Computer 
Inertial Navigation & Aiming 
Operation Under N.B.C. Conditions 
Crew: 4 


Ammunition storage

45 tons