Thread: Using comparator tool when seating projectiles.

Originally Posted by Micky Duck

your looking at it wrong..... the seating die seats all projectiles by the bit of the olgive/curved front half at the same fatness area for want of better term...it will be at same fatness reguardless of projectile shape even a round nose but of course that will be really close to tip...with my 170grn rn in .270 I need to back the die well out to seat projectile as cant lift seater stem high enough.

Nah, he’s looking at it right. Given that the seating stem contacts between ogive and tip, if there is any variance in the ogive profile between the projectiles, you’ll get different CBTO lengths.