6.5PRC 156 berger - seating depth OAL/jump

[mauiarcher]

working up a load for tikka t3x 24" with berger 156 and H1000. The SD and ES are great at 58.4grain (12.5 and 5.4 only 3 shots though) but accuracy is not there (1.29"). I started at 2.995 OAL (max for magazine) and lands are around 3.084 so 89thou jump. I have read the bergers like alot of jump. Next range trip I have a few different OAL to try down to 2.955.

What is your preferred OAL or jump? Any one with similar experience?

Thanks

 

[Nine Banger]

I'm loading .020" off and I'm getting the same groups.

I don't get groups much smaller than that when I shoot 10-30 round groups of any ammo.

 

[Yovi1991]

I’m .020 off the lands as well and have had great results never messed with anything deeper. started .020 and had great results

 

[Azhunter10]

I’m running 156s with N565 and a .30thou jump and never messed with it from there as it shot very well

I should mention, I’m running it in a long action with a 20” barrel

 

[JO.]

I'm .45thou off but I'm seated at 3.03 in a medium action. I've shot some of the Berger factory rounds through it and I would imagine they are loaded to 2.995.