| Tatume |
| (.400 member) |
| 02/08/08 09:14 AM |
Re: cannilure
|
Quote:
Regarding the seating depth, both the softs and solids are crimped at the same point on their respective cannelures.
But, is the distance from the cannelure to the base of the bullets the same? Usually they are set so the distance from the cannelure to the point on the ogive where the rifling will be engaged is the same, and distance to the base varies. It is the depth to which the base is set in the case that influences pressure.
Quote:
Could the fact that the solids may possibly taper differently than the softs make that much difference?
Yes. Ken Waters, one of the best authorities on the matter, frequently found substantial pressure differences between loads that differed only in bullet shape.