bob_dobalina
Handloader
- Oct 6, 2009
- 343
- 50
I have been wanting to play with seating depth on my 25-06 to see if I can get tighter groups. I've been searching through the forums which provides great information but I have no idea how you guys get such accurate seating depths. I measured 20 rounds I loaded up in a RCBS die, and the seater lock nut was tightened down well, and my over length varies between 2.55 to to 2.6. There's no way I could make .01 adjustments! so what I did was loosen the lock nut, went 1/2 turn deeper, and seated a few bullets. they are 2.35 to 2.4. i was assuming this was because they are partitions, and the seater makes contact with the bullet rather than the tip, and each tip is mashed a little differently, but I think I have seen this on ballistic tips also. any advice on what I'm doing wrong? thanks.