Wider or Longer?

 

"Based on results of artillery trials of an IS-122 SPG in the amount of 438 shots (222 supercharged) the Gorohovets ANIOP makes the following conclusions:

• The 122 mm IS-122 self propelled gun passed proving grounds trials and can be accepted into mass production.
• The IS-122 has the following advantages over the IS-152 self propelled gun-howitzer, such as:
• Rate of fire is twice as high.
• Ammunition capacity is higher (30 rounds instead of 20 like in the IS-152).
• Muzzle velocity and penetration are higher (by 20%).
• The maximum range is longer (by 3 km).
• It is easier for the crew to work, load ammunition, and prepare for battle.
• Fire at moving targets is more effective."

Via Yuri Pasholok.