Load development help

[jsthntn247]

What's my next move? 7ss 175 Nosler lrab and Re26. I shot these touching the lands so when I move back it will be decreasing pressure.

 

[Seabeeken]

I like the 160.8. Same basic impact point as the loads on either side. Not much verticle movement. Id play with seating depth to tune it

 

[QuietTexan]

How many rounds through the barrel and how many firings on the brass?

 

[Coyote Shadow Tracker]

What's my next move? 7ss 175 Nosler lrab and Re26. I shot these touching the lands so when I move back it will be decreasing pressure.

Good fast powder RE26 and 7mm 175 Noslers At 1K Meters you are good to go, Good Groups!!!
You shouldn't miss any Elk, Deer, Prong, Bear, Heck probably get some PDs no problem.

 

[sedancowboy]

The LRAB likes lots of jump.

 

[Dmagna]

Hard to say without chrono numbers

 

[BrentM]

Hard to say without chrono numbers

Imho this. Ocw tests show optimal charge for the distance you are shooting but tell you zero about velocity standard deviation. So while you may get exceptional results at x range you may get sub-optimal at longer and long range. Just something to ponder on your journey.

 

[RB II]

Is the 62.2 the max load? It appears to me that it is beginning to become better, the heavier/faster the load. The 60.8 also looks like a possible node. As above, I would move back to 20 thousands off the lands and try the 62.2 and the 60.8 apparent nodes.

 

[KsKevin]

Would like to see velocity data but I'd start working seating depths at both 60.6g & 62.0g

 

[Rflshootr]

Curious as to what primers you are using.

 

[Mikecr]

I shot these touching the lands so when I move back it will be decreasing pressure.

Waste of time.
Touching land relationship is precarious.
I suggest starting over with backing off the load a few grains and doing Berger recommended full seating testing, but at least 5thou off the lands (OTL). Then with best there, move to powder development.

This way, you won't have to manage land erosion or mess with seating again (for THAT bullet).

 

[skipglo]

Good fast powder RE26 and 7mm 175 Noslers At 1K Meters you are good to go, Good Groups!!!
You shouldn't miss any Elk, Deer, Prong, Bear, Heck probably get some PDs no problem.

Am I missing the 1000 m somewhere? If so...great groups but I think it's more likely...100 yards! Don't you?

 

[lancetkenyon]

Each of these groups look like every NABLR bullet I have tested in many different calibers, cartridges, bullet weights, and rifles, save 1. One, out probably 25 attempts with charge weight, seating depth, primer swaps, and neck tensions.

 

[skipglo]

Each of these groups look like every NABLR bullet I have tested in many different calibers, cartridges, bullet weights, and rifles, save 1. One, out probably 25 attempts with charge weight, seating depth, primer swaps, and neck tensions.

Yup! Not much I see to like!