No G7's aren't specific to boattails, just that the standard G7 projectile is a boat tail, so a G7 BC is a better fit to boat tails than the G1 BC.
There are other ones as well
Copied from...
Type: Posts; User: stug
No G7's aren't specific to boattails, just that the standard G7 projectile is a boat tail, so a G7 BC is a better fit to boat tails than the G1 BC.
There are other ones as well
Copied from...
Doesn't Sierra list multiple G1 BC's for their projectiles? I seem to remember Brian Litz saying the advantage of the G7 is that the BC has less variation as the velocity change