Nosler ABLR Jump

aushunter1

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Joined
Nov 16, 2012
Messages
743
Location
Australia
@aushunter1

I just realized my fatal flaw 🤦🏻‍♂️
I had worked seating depth prior on this rifle, but was too cheap to buy a comparator and properly obtained max cbto. I was chasing my tail with inadequate results because I was jamming 0.020” thinking that was 0. I loaded the next test (this one) without even considering the starting load.
I just restarted a seating depth test on a max load 😑

For some, probably not a big deal. No pressure signs, whatever. But my process is to start with depth before charge...
Good thing you realised!

Yes reloading is a hard thing to do without the right gear!!




I dont understand this bit in red??

If what your saying is you test at 3 rounds per seating depth of 5 = 15 rounds per charge.
So if your shooting .5 incriments over say 4gr thats 15x8=120 rounds per test??
Am I miss reading something in that??

That means If you go up to 5 rounds per test thats 200 rounds?

I think I am not understanding what you said.

We all have our own methods but If Im not restricted by mag lenght then I go through my powder range at 0.010, 5 @ each charge incrememnt of either .3 or .5 so max 40 rounds per test.
 

26Reload

Well-Known Member
Joined
Dec 25, 2016
Messages
2,260
Location
SE Idaho
I usually go with bowlers advice of the .050"...put a new 65284 together...the normal oal didn't fair so well...i moved forward with the bullet....still plenty in the neck...reduced my powder load and using a mag primer.....not in the lands...but now shooting nearly 1/2" at 100yds....
Sometimes.....takes a while..and lots of patience....and loading materials......
If you like the rifle....keep at it...eventually it will tell you a tale...
 

mwkelso

Well-Known Member
Joined
Aug 4, 2019
Messages
262
Location
Hayden, ID
Good thing you realised!

Yes reloading is a hard thing to do without the right gear!!




I dont understand this bit in red??

If what your saying is you test at 3 rounds per seating depth of 5 = 15 rounds per charge.
So if your shooting .5 incriments over say 4gr thats 15x8=120 rounds per test??
Am I miss reading something in that??

That means If you go up to 5 rounds per test thats 200 rounds?

I think I am not understanding what you said.

We all have our own methods but If Im not restricted by mag lenght then I go through my powder range at 0.010, 5 @ each charge incrememnt of either .3 or .5 so max 40 rounds per test.
That would be one heck of a test...

Typically I start with the book’s middle charge and work depth in 0.010” increments off the lands until I find a node. I have done this with 3-shot groups, but am now seeing the merit in 4’s and 5’s.
After I find the tightest grouping node, I shoot groups 0.005” both directions.
Following that, I adjust my powder charge in either 3 or 5 grain increments depending on the caliber.
 

MZmoose

Well-Known Member
Joined
Jan 23, 2012
Messages
97
Location
NE Washington State
I’m curious to know what distance of jump is successful with this bullet, specifically the 150gr .270.
I shot a seating depth test today up to 0.060” off the lands and wasn’t too terribly impressed. The only two groups worth mentioning was the 0.030” that shot just barely over a minute, and the 0.060” that shot two through the same hole, but then had a flier 1-1/2 minutes high.
Brass is RP 3x fired
Primer- CCI200
Powder- 55gr H4831
Temp- 77 farenheight at 2250’
In a .308 win, and a 7mm RM I've been running ABLRs at 0.010" and both guns shoot about .5 MOA
 

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