seating depth
- Thread starter foul bore
- Start date
Help Support Long Range Hunting Forum
Can you be more specific regarding how you are determining the change that necessitates you to change your seating depth? Is there a difference in bullet length, brass length, overall length???
If you are loading SAMMI specs or are you reloading off L&G. Get your ogive measurements and check how much length is left between the ogive and tip of your bullet. There can be variances between them but should only affect your OAL length. Need more information to answer your question defining what you actually asking.
If you are loading SAMMI specs or are you reloading off L&G. Get your ogive measurements and check how much length is left between the ogive and tip of your bullet. There can be variances between them but should only affect your OAL length. Need more information to answer your question defining what you actually asking.
Last edited:
aushunter1
Well-Known Member
Glad I buy ELDs in the 2000 box
For my last 9 rounds that I was loading tonight I ran out of my last box of 147 ELDMs. I like the 2000 count because on sale or with a discount code they have been coming in under .30 per bullet. Next time I get I doubt it. However, I checked my OAL and it was about .005 shorter for the new...
It is not overall length, I did not change setting on the die, second batch in the lands, I was .015 out. noticed this when I had a round not want to chamber. I went home and checked and had to adjust. I always make sure brass is the proper length.
me thinks this is an error in terminology
you can be off the lands, we measure to land contact, a common practice.
not so sure about measuring and seating off the grooves.
you can be off the lands, we measure to land contact, a common practice.
not so sure about measuring and seating off the grooves.
You might not have changed setting on your die but "IF" you have your setting depth (CBTO) written down for your load, you should always check the CBTO before proceeding on your next run. Perhaps the lock nut has moved on you or you did not set the die all the way. I always do a dummy run and check my CBTO on all of them for consistency.
It's not like I'm on AR Shooter that goes through hundreds of rounds or a match Shooter I just shoot for fun paper Steel or hunting but I check every round I load Cbto and if they're not within .001 they are used for sighters or Fowler's
LaHunter
Well-Known Member
Within the same bullet type and weight, but different lot #s, I will usually need to adjust my seating die to achieve the same CBTO measurement. It can be as little as .001" adjustment or as much as .005" between different lot #s. I'm using the Hornady LnL Headspace Comparator tool.
I try to buy several boxes of the same lot # when I buy my bullets.
I try to buy several boxes of the same lot # when I buy my bullets.
I think that is what I need to do, my terminology may be misleading and my methods may be primitive but I usually have good results.
yes I do, it is possible die could have moved, I will check closer in the future
ronstone09
Well-Known Member
I use a comparator for my bullets because they are all different in the same box ! I find some 005 different and I separate by size !
