And Vol 2 might also have shown some of the problems encountered with a covered range. Harold Vaughn relates some of these, in his work Rifle Accuracy Facts. I've considered an underground range, using medium-dia pipe (24" or larger, for full access) but haven't pursued it.
Regards, Joe


You can lead a man to logic but you can't make him think. NRA Life since 1976. God bless America!