Berger 155.5gr Seating depth.

[Barossa_222]

Hi all. Was wondering if anyone has found a preference with regards to jump or jam with these projectiles? Trying to improve my accuracy. Was getting fairly good results using 15 thou of jam, but am now getting quite a lot of vert and am using all of the 6 ring at any given range. Any thoughts would be appreciated. Cheers.

[Peterla]

I found 10th jump worked well when I was using them.
When I ran them with no jump or jam the group started to open up then 10th jam the group was bigger.
As I moved back to 20th jump the group also opened up so I settled for 10th Jump.

As always each rifle is different so just try some group testing with jump and jam and then refine from there.

[Quick]

I run 10-15 jump with mine but have a play and see where they like to sit.

[NDO]

Mine group well 40 thou off the lands and don't seem overly sensitive between 25 and 40 thou off.

You'll probably get responses ranging from jump to jam.