Berger 140 Hybrid CBTO?

[Jake the dog]

If someone could post CBTO for factory Berger 140 Hybrids, I would greatly appreciate it. I bought a case to break in a new rifle (and get 200 once fired Lapua cases) and forgot to measure before I shot the last one. Realized it about 2 seconds after the last one went bang.
Just another senior moment.

 

[jpcowboy]

Mine measure 2.062

 

[Jake the dog]

Thanks. I will use that as a starting point for load development. I'm going to load 50 moving up from 40 gr. of H4350 in .3 gr steps to find the velocity the factory gave me, then start adjusting jump. This gives me a starting point.
Once again, thanks for taking the time to measure and respond,.

 

[jpcowboy]

What velocity did the factory ammo give you, i was getting 2774 most guys on reviews were around 2830

 

[Jake the dog]

I was getting 2825 to 2840. That was rounds 50 to 100 on a new barrel. 26 inch, heavy varmit, 1/8 twist Schnider, about 250 feet DA. I hope to duplicate that then work on seating depth. The rifle can shoot .25 moa, but probably not with me behind it.

 

[DellaDog]

For me, 140 Hybrids, 41.5 H4350, 1/8 26” Bartlein = 2810, 1/4” groups. 610 MSL