Fred

Remember that the target dimensions this ammunition was designed to hit are shown below:
1972 short range target dimensions
200x 3” (V-Bull) 4.5” (Bull) 9” (Inner) 14” (Magpie & Aiming Mark) 24” (Outer)
300x 4.5” (V-Bull) 6.75” (Bull) 13.5” (Inner) 21” (Magpie & Aiming Mark) 36” (Outer)
500x 8” (V-Bull) 12” (Bull) 27” (Inner) 36” (Magpie & Aiming Mark) 72” (Outer)
600x 10” (V-Bull) 15” (Bull) 27” (Inner) 36” (Magpie & Aiming Mark) 72” (Outer)

(From the book target rifle shooting by major e.g.b Reynolds and Robin Fulton)