Hello Don.
I have found here this source:
http://fas.org/man/dod-101/sys/land/row/crewwpns.htm
And with surprise has found out that data published here - erroneous or inexact.
The explanation idle time - at me is the passport (or the instruction) to gun RCL B-10 and to gun RCL B-11. In them I subtracted that the shell flies with speed of 400 metres per second / and as all of us know at HEAT shells penetration does not change with distance increase. Then it turns out that on the source of the information specified by me - a shell let out of gun B-10 or B-11 - will fall to the earth in 1 second?
Here the links to the table of shooting for gun B-10:
www.pecypc.kz/kramax/b-10/212324.jpg
www.pecypc.kz/kramax/b-10/212326.jpg
www.pecypc.kz/kramax/b-10/212327.jpg
www.pecypc.kz/kramax/b-10/212328.jpg
www.pecypc.kz/kramax/b-10/212329.jpg
www.pecypc.kz/kramax/b-10/212330.jpg
www.pecypc.kz/kramax/b-10/212331.jpg
www.pecypc.kz/kramax/b-10/212332.jpg
www.pecypc.kz/kramax/b-10/212333.jpg
www.pecypc.kz/kramax/b-10/212334.jpg
www.pecypc.kz/kramax/b-10/212335.jpg
www.pecypc.kz/kramax/b-10/212336.jpg
www.pecypc.kz/kramax/b-10/212337.jpg
As we see aim range of shooting of 1430 metres. This distance a shell flies by for 5.3 seconds. Range of a direct shot - 390 metres. What is the direct shot is when the cross in a gun sight should be induced precisely at the tank (or the car) and for this purpose it is not necessary to enter amendments into a sight. But then it turns out if we take range of a direct shot then in game it is necessary to reduce this range at all tanks for a basis.
Aim range of shooting HEAT a shell - is specified in the table in a file 212333.jpg
Aim range of shooting HE a shell - is specified in the table in a file 212335.jpg
The item with. If I am interesting I can translate into English names of columns of tables.
Sorry for my bad English.
Best regards