Sellier and Bellot 180 .303 ballistic Coefficient

[ovenpaa]

Does anyone have the BC for the S&B .303 Britsih 180's or care to make a stab in the dark as to what the G1 would be?

[Sandgroper]

According to http://forums.outdoorsdirectory.com/sho ... -BC-rating it has a "BC in the 0.496 to 0.50 range.."

[Steve E]

Not sure of the BC but in my .303s no where near as good as Sierra 174 Match Kings or the Hornady 174 BTs

Steve E

[ovenpaa]

According to http://forums.outdoorsdirectory.com/sho ... -BC-rating it has a "BC in the 0.496 to 0.50 range.."

Seems optimistic but it is quite a lump at 180 grains.

Not sure of the BC but in my .303s no where near as good as Sierra 174 Match Kings or the Hornady 174 BTs

I have a couple of hundred SMK's to load up next but wanted to get rid of the S&B factory stuff I have in the cabinet. Out of interest how do the Hornady compare to the SMK's?

[Steve E]

The SMKs shoot the tightest, well able to hold the 'v' bull from 300 to 900 yds. The Hornadys are a bit looser out to 600 but as good as the SMKs over the hill. The S&bs are OK on the 'proper' historic targets with the huge bull(16 inches at 500/600yds and 7 inches at 200) but on the NRA targets, barely able to hold the Bull. I've tried various powders but gave up on them. I have not shot the S&B ammunition. Did not see the point. The Hornady's with the same powder load as the SMKs seem to shoot about 2 mins high and 2 mins to the right. I think this is because they have a much longer boat-tail.

Steve E

[Ballistol]

On bullet database there are two S&B 180g's, BCs in red.

0.311 Sellier-Bellot FMJ 2909 180 180 1.272 0.266 0.496

0.311 Sellier-Bellot SPRN 2940 180 180 1.079 0.266 0.27