Because bullets with high BCs like the 105 amax will not stabilize in most factory 243 barrels. The twist is to slow. The heavier and longer the bullet the better the coefficient and also the faster twist needed. Bullet shape and design plays a role as well.
Originally Posted By: EDPHow is the bullet BC have anything to do with the rifle?
Just asking?
Thought the bullet BC was based on the bullet alone Originally Posted By: FairChase93Because bullets with high BCs like the 105 amax will not stabilize in most factory 243 barrels. The twist is to slow. The heavier and longer the bullet the better the coefficient and also the faster twist needed. Bullet shape and design plays a role as well.
Yep, this is why.
What works in a 9 twist will likely not in a 10 and so on.
Your probably good for everything from 100 grainers on down. There are lots of good coyote bullets out there 87 Vmax, 87 Berger Vld, 95 Vld for higher BCs.
Originally Posted By: dan brothers
BC only helps out on longer yardages... how far are you planning on shooting...
Dan's right.
BC only really figures into the equation once you get past what most of us would call "normal" hunting yardages.
Berger 105 Hybrids are a good high-BC bullet.