I'm powder coating Lee's c309-160-R, using 18.0gr of 2230 and averaging 1492fps in a 16" barrel and 1315fps in a 7 1/2" barrel.
My BHN11 alloy is dropping at 166gr, gas checked before coating and resized at .309" after coating, OAL 1.940".
Resizing for consistency and expanding the case mouth is usually a must. This reduces shaving the bullets or damaging the case neck when seating the bullet.