correcft for practical purposes. Thus at 40 yards, or 1 20 

 feet, a difference of 1 2 feet in position represents a loss 

 of 10%^ of velocity as compared with the leading shots, 

 and this represents a loss of nearly 20^ of penetration. 

 In other words, if the foremo^ shot would penetrate 40 

 thicknesses of paper, the last would penetrate only 32. 

 This is probably somewhere about right. — G.H. 



69 



