Density

The concept of density of fire per minute was a very important one in Soviet strategic planning. Effective offense and defence hedges on first and foremost having enough bullets that can fly at the enemy, and some units went so far as to illustrate their abilities.

Here is a map of the 354th Rifle Division's lines with the available volume of fire that can be sent the enemy's way per linear meter in November of 1944.

The data is also broken down in a table.

Weapon	Amount	400 m	600 m	800 m	1000 m	1200 m
Rifle	332	3320	3320	3320
SMG	317	31700	31700
Light MG	22-45	6360	6360	6360	6360
Heavy MG	23-25	14400	14400	14400	14400	14400
Antitank rifle	7, 14	210	210	210	210	210

The range of the SMGs is very optimistic, out to 600 meters. It's also interesting that the types of anti-tank rifles are separated, but both have the same effective rate of fire. The venerable Maxim gun also shows the value of a heavy stable mount, with an effective range rivalling the high velocity anti-tank rifles.

In December, another table is drawn up, this one a little more conservative. A significant amount of reinforcements had arrived in the meantime, so some of the numbers are much higher.

Weapon	Amount	Practical ROF	100	200	300	400	600	800	1000
Rifle	1054	10	10540	10540	10540	10540	10540	10540
SMG	712	100	71200	71200	71200
Light MG	119	80	9520	9520	9520	9520	9520	9520
Heavy MG	63	250	15750	15750	15750	15750	15750	15750	15750
Antitank rifle	19	10	190	190	190	190	190	190

The Maxim is still the longest hitting weapon out there, the anti-tank rifles took a bit of a hit to their range. 

Via dms_mk1.