I load 148 gn plated HBWC's in both .38 S&W and .38 Special loads using both a turret and progressive press. While round nose, truncated cone and semi-wadcutters move up into the seating die if tilted slightly in the case mouth I have found the HBWC must be verticals. If they lean off the vertcle the case mouth ends up crushed, even if the case is flared enough to seat the base of the projectile correctly.

I have now developed the habit when loading HBWC's of ensuring the projectile is guided up into the seating die with the hand that places the projectile into the case. No more crushed case mouths.