New Russian OOB (or SPR OOB)

[Krok]

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On mine all problem in distinction of terms.
Shot, at which the trajectory does not rise above a line of an aiming above height of the target on all extent, has the name - a shot on point blank range . Within the limits of point blank range , during the intense moments of fight, shooting can be conducted without rearrangement of a sight.
In russian this range refers to "dalnost pryamogo vystrela"
or if translate it is literally -"range of direct shot"
So we have point blank range for a B11 gun - 450 meters at initial speed of grenade 400m/s and weight of proectile near 7,5kg for 2m height target.
I think for m40a 106mm rcl at initial speed of grenade 500m/s point blank range is near 600-800m .
For 106mm RCL m40a i saw some different definitions of range of fire :
1300-1500 m - effective range on the motionless targets, 1000-1100 m - effective range on the moving targets,
500-700 metres " best fighting range ",
about 2500-2700 metres with the modern aim equipment including a ballistic computer and new proectiles with high penetration.
IMHO 450metres for B11 RCL it " best fighting range ".

Alex (Krok)