28 nosler wringing out

[JMack]

160 accubonds @100 yards 3 shots

Retumbo at book max 84.0gr printed 1" zero pressure signs

84.5gr went to 1/2" zero pressure signs.
gun is throated for 180 Bergers so I have plenty of room in case

where do you go from here 84.7? 85.0? or do I start messing with seating depth at the 84.5?

this is my first rifle with a long throat

 

[dok7mm]

I would want to confirm velocity prior to increasing charge wt., just to be on the safe side.

 

[JMack]

Snuck out to range this morning

 

[Mram10us]

160 accubonds @100 yards 3 shots

Retumbo at book max 84.0gr printed 1" zero pressure signs

84.5gr went to 1/2" zero pressure signs.
gun is throated for 180 Bergers so I have plenty of room in case

where do you go from here 84.7? 85.0? or do I start messing with seating depth at the 84.5?

this is my first rifle with a long throat

Have you done a ladder? How far does your range go out to? 180hybrids shoot very well for most. I use 195 with n570 with great results

 

[JMack]

Maybe I just lucked into a 1/2" group last time out.

for the length of my barrel I'm ok with this speed I'd just want to tighten it up some

 

[JMack]

Have you done a ladder? How far does your range go out to? 180hybrids shoot very well for most. I use 195 with n570 with great results

I have not done a ladder. I have 500 yard range available

 

[JMack]

I was looking for max in my rifle never. Did hit any pressure signs.
this was at 100 yards.

 

[JMack]

No idea what happened with the 85 weird

 

[Mram10us]

No idea what happened with the 85 weird

Time between shots?

 

[JMack]

Time between shots?

10-15 minutes pretty much a cold barrel

 

[Jud96]

You have a flat spot in velocity from 85.5-86.0gr. I'd load up 5 at 87.7 and test for velocity standard deviation. If it's single digits, then work on seating depth to tighten up your groups.

 

[JMack]

You have a flat spot in velocity from 85.5-86.0gr. I'd load up 5 at 87.7 and test for velocity standard deviation. If it's single digits, then work on seating depth to tighten up your groups.

jump up to 87.7?

 

[Jud96]

jump up to 87.7?

That was supposed to be 85.7, I'm sorry for the typo.

 

[257Tony]

Those velocities seem really low for a 160. Most guys are getting better than that with 180's, and some with 195's. You're over 200 fps slower than the Nosler published data. What is your COAL? Could be you're loading long and getting low pressures.