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Posted: 9/29/2002 1:22:02 PM EDT
[Last Edit: 10/2/2002 6:16:26 AM EDT by Phila-PD]
AnyOne out there happen to know the B/C for the followingh ammunition 7,62X51mm Ball M1A2 made in South Africa with lot number 550 A/84? The 12000 rounds I have are all of the same lot number. Good looking stuff and I want to work up a Ballistic chart for the round.
Link Posted: 10/2/2002 6:17:50 AM EDT
No on-line sources?
Link Posted: 10/2/2002 6:23:20 AM EDT
try sierra bullets tech help
Link Posted: 10/13/2002 7:25:59 PM EDT
PMP makes the S/A ammunition. No one out there have any quesses
Link Posted: 10/13/2002 8:10:14 PM EDT
It's approximately 0.393.

That's not exact, but it'll put you in the ballpark.

I'll keep looking for an exact number.
Link Posted: 10/17/2002 5:39:23 AM EDT
There is no exact number, the ballistic coefficent will be different for every barrel, the barrel scores the bullet, each barrel is unique, so the number changes.
Link Posted: 10/17/2002 7:54:03 PM EDT
But Its nice to have a starting point with the base B/C just for the ammunition.
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