Hammer ballistic coefficients

[dougduey]

..

Tikka changed the twist for the 300 WM last February to 1:10, in recognition of where the market was headed with long, higher BC bullet designs. I was lucky to get one of the first of these when they became available.

That's great to hear. They n the fed to change that twist rate for years. I've got a Sako 75 in 300 WSM and have always hated the 1:11 twist.

 

[dougduey]

That's great to hear. They n the fed to change that twist rate for years. I've got a Sako 75 in 300 WSM and have always hated the 1:11 twist.

*needed to change. Not sure how autocorrect changed it.

 

[FEENIX]

When BC's are published by manufacturers, how do they do it? Is there a standard method? Of so, where is it published?

Most of them have their own ballisticians.