600 ns case variety of load options
RL-600 3 grain
A: 3.5, 3.5, 1.75
B: 5, 2.5, 1.25
C: 5x1.75
D: 3x2.5, 1x1.25


3 grains 8.75" total (A, B)
A: 3.5, 3.5, 1.75
B: 5, 2.5, 1.25
Area inches ^2  = 17.01
THROAT=  17.00/64    Kn =      306.93
THROAT=  18.00/64    Kn =      273.78
THROAT=  19.00/64    Kn =      245.72 FS
THROAT=  20.00/64    Kn =      221.76 WS/SD
THROAT=  21.00/64    Kn =      201.14 BK
THROAT=  22.00/64    Kn =      183.27
THROAT=  23.00/64    Kn =      167.68 F/STD
THROAT=  24.00/64    Kn =      154.00
THROAT=  25.00/64    Kn =      141.93
THROAT=  26.00/64    Kn =      131.22
THROAT=  27.00/64    Kn =      121.68

4 grains
3x2.5, 1x1.25 (D)
Area inches ^2  = 19.241688
THROAT=  18.00/64    Kn =      309.73
THROAT=  19.00/64    Kn =      277.98
THROAT=  20.00/64    Kn =      250.88 FS
THROAT=  21.00/64    Kn =      227.56 WS
THROAT=  22.00/64    Kn =      207.34 BK
THROAT=  23.00/64    Kn =      189.70
THROAT=  24.00/64    Kn =      174.22
THROAT=  25.00/64    Kn =      160.56 STD/F
THROAT=  26.00/64    Kn =      148.45
THROAT=  27.00/64    Kn =      137.66
THROAT=  28.00/64    Kn =      128.00

5 grains
5x1.75x3/8c (600) (C)
Area inches ^2  = 21.475098
THROAT=  19.00/64    Kn =      310.25
THROAT=  20.00/64    Kn =      280.00
THROAT=  21.00/64    Kn =      253.97 FS
THROAT=  22.00/64    Kn =      231.40 WS
THROAT=  23.00/64    Kn =      211.72
THROAT=  24.00/64    Kn =      194.44 BK
THROAT=  25.00/64    Kn =      179.20
THROAT=  26.00/64    Kn =      165.68 STD/F
THROAT=  27.00/64    Kn =      153.64
THROAT=  28.00/64    Kn =      142.86
THROAT=  29.00/64    Kn =      133.17