Ballistic coefficient of the bullet used in the 303 British Mk VII ammunition ?

[jmoore]

I'd guess that the .468 number is close enough for most purposes. The 180gr Sierra hunting bullet is rather shorter as it doesn't have the plug in the front of the bullet found in the Mk.VII. The SP bullet's ogive and nose are blunter. But the 180gr Sierra still matches the military ball's flight characteristics with in a minute or two out to 700 yards, based on shooting them through No.4 Mk.I (T) rifles.