bikemutt
Member
I'm trying to gain a better understanding of why Catridge Overall Length (COL) is not as important to seating depth as knowing length to the ogive of any given bullet. Maybe the best way to ask my question is to state what tools I have now and how I use them. This way, if I'm overlooking something, misunderstanding something, or just plain doing something wrong, it should be easier for the experts to help me get on the track.
I've got a Hornady OAL gauge and one each of their specially threaded brass cases for every rifle cartridge I load for. I also have a set of Hornady bullet comparator bushings.
For any given rifle and projectile, I use the OAL gauge and measure both the COL and the length with the comparator bushing which should tell me the length to the ogive.
I subtract the amount of bullet jump I want to start with, say .020", from these lengths in order to come up with a seating depth. I use the same projectile which was used in the OAL gauge to seat the first bullet.
Here is where I run into the weeds. To my way of thinking it really doesn't matter if I seat the bullet to a measured COL length computed above, or to a measured length to ogive computed above, after all, I subtracted the same bullet jump from both numbers. In other words, if I seated the bullet using either length, the other length should should also be met.
What am I missing here Team?
Thanks
I've got a Hornady OAL gauge and one each of their specially threaded brass cases for every rifle cartridge I load for. I also have a set of Hornady bullet comparator bushings.
For any given rifle and projectile, I use the OAL gauge and measure both the COL and the length with the comparator bushing which should tell me the length to the ogive.
I subtract the amount of bullet jump I want to start with, say .020", from these lengths in order to come up with a seating depth. I use the same projectile which was used in the OAL gauge to seat the first bullet.
Here is where I run into the weeds. To my way of thinking it really doesn't matter if I seat the bullet to a measured COL length computed above, or to a measured length to ogive computed above, after all, I subtracted the same bullet jump from both numbers. In other words, if I seated the bullet using either length, the other length should should also be met.
What am I missing here Team?
Thanks