300wm RL26 180gr accubond help

[unclefish]

If someone can just point me in right direction.
Says 80gr max for rl26 should I start at 72 gr and go by half or should I do 1 full grains till I find the sweat spot . And also how far off the lands for the nosler accubonds.
My previous perfect load was
72gr rl26 200gr Barnes lrx .050 off. Not sure if it will help figuring out for 180gr accubonds.
This is for hunting......

 

[MagnumManiac]

If someone can just point me in right direction.
Says 80gr max for rl26 should I start at 72 gr and go by half or should I do 1 full grains till I find the sweat spot . And also how far off the lands for the nosler accubonds.
My previous perfect load was
72gr rl26 200gr Barnes lrx .050 off. Not sure if it will help figuring out for 180gr accubonds.
This is for hunting......

In a known rifle, I normally drop 5% from max and work up in 1gr intervals until a node is found, then do a ladder at .3gr intervals for 3 loads above and below. I find .030" to be a good starting point in my target rifle, but my hunting rifle is long throated, so mag length is used.
You can work up in .5gr increments if you wish, it may, or may not, save some barrel life and components. I would start at 76gr or 77gr.

Cheers.
gun)

 

[unclefish]

Thanks do you usually do this @100yards and round robbin

 

[MagnumManiac]

Thanks do you usually do this @100yards and round robbin

I start my testing at 100yrds, if it's for very long range (800yrds or more) I test at 300yrds to work up my loads. I shoot for grouping with initial work up, 3-5 rounds per powder weight, then shoot ladders with .3gr increments for 3 loads below and 3 above the most accurate load found during group testing, this is done in order with 1 shot per powder weight aimed at the same aim point. If the node is wide, all shots will group close together, if it is narrow, there may be 2 distinct groupings, this is what we're testing for, wide nodes perform better in differing conditions.
All ladder testing should be done at 300yrds minimum, 500yrds is better.
Hope this helps.

Cheers.
gun)

 

[unclefish]

Thanks I will start this weekend on finding my powder charge. If the wind will calm down.