The more information you provided, the better.

Cartridge:
Cartridge over all length:
Bullet touching/jammed into lands at C.O.A.L. (Y/N):
Bullet:
Measured bullet length:
Powder type & charge weight:
Case length:
Case water capacity (measured level to case mouth):
Barrel length:
Barrel twist rate:


“There are three things all wise men fear: the sea in storm, a night with no moon, and the anger of a gentle man.”
― Patrick Rothfuss, The Wise Man's Fear