ballistic coefficients?

Darryl Cassel · #8 07-16-2003, 11:04 PM

Hello

The 200 Gr MK has a BC of .600 and the 220 has a BC of .655.

The 240 Gr MK has a .711 BC

Later
DC

BountyHunter · #9 07-17-2003, 05:58 AM

cdixon

This is a copy of BCs for common LR bullets from an earlier post and everyone has been adding to the list as we go.

6.5 Caliber
Sierra 142 .595@2850
Berger 140 .633@2240
JLK 140 (B) .630
Clinch River 147 _____
AMAX 140 .618@2400
Cauterucio 141 .630

7mm Caliber
JLK 168 .690
JLK 180 .738
Sierra 168 MK .636
Cauterucio 156 .615
Cauterucio 176 .750
Berger 168 .648
Berger 180 .738
AMAX 162 .625
Nosler 140 BT .488

30 Caliber
Sierra 168 MK .462
Sierra 180 MK .475
Sierra 190 MK .565
Sierra 200 MK .600
Sierra 220 MK .655
Sierra 240 MK .711
Sierra 200 GK .597
Berger 168 .512
Berger 175 .537
Berger 185 .569
Berger 190 .583
Berger 210 .640
JLK 190 .602
JLK 210 .665
AMAX 168 .475
AMAX 178 .495
Cauterucio 190 ____
Cauterucio 210 ____
Clinch River 216 ____
Hornady 180 SST .481
Lapua Scenar 155 .508

338 Caliber
Sierra 250 MK .565
Sierra 300 MK .797
Hornady 225 SST .526

Anyone got any updated info, particularily on GTB(Cauterucio) bullets, post it and I will modify the chart above.

BH

[ 07-17-2003: Message edited by: BountyHunter ]

Darryl Cassel · #10 07-17-2003, 06:57 AM

Hello BH

The Oehler program has the 30 Cal Sierra Match King 190 gre at .565 the Game king 200 gr at .597.
The 30 cal 200 Gr Match King at .600 and the 30 cal 220 Gr Match King at .655.

Everything else that's posted seems to be what the manufacturer has "claimed" as per the "custom lines".

Later
DC

Len Backus · #11 07-17-2003, 06:58 AM

Cauterucio 7MM, 176 at .750

Checks out with my drop tables.

BountyHunter · #12 07-17-2003, 09:45 AM

Len

changes added to list. Still think this would be pretty good start for FAQ info item and guys have lot of other good stuff for that. Would answer lot of reoccuring common questions.

BH

Mysticplayer · #13 07-17-2003, 10:31 AM

Would like to compare notes on the SST and amax bullets. In my experience, they fly "flatter/higher BC" then their listed BC. Have had that in several rifles and 30cal from 308 to 300Wby.

Any thoughts???

Jerry

Darryl Cassel · #14 07-17-2003, 01:18 PM

It is 1.598" long. Tip to base.

DC