Ken,
It will take some compression (see LD�s %) to make work towards the lighter end of the bullet weight range.
I suggest the following.
Caliber: .280 Remington Ackley Improved.
Barrel length: 24�
Powder: Accurate - MAGPRO�
Bullet weight: 120 grains
Start load: 62.1 grains (2875- 2975 Fps)
Maximum load: 69.0grains (3200 � 3300 Fps). LD ca 111%
Bullet weight: 140 grains
Start load: 61.0 grains (2800- 2900 Fps)
Maximum load: 67.0grains (3100 � 3200 Fps). LD ca 109%
Bullet weight: 150 grains
Start load: 60.0grains (2700- 2800 Fps)
Maximum load: 66.0grains (2975 � 3075 Fps). LD ca 108%
Bullet weight: 160 grains
Start load: 59.0grains (2600- 2700 Fps)
Maximum load: 65.0grains (2900 � 3000 Fps). LD ca 107%
Bullet weight: 168 grains
Start load: 57.8grains (2500- 2600 Fps)
Maximum load: 64.2grains (2850 � 2950 Fps) LD ca 105%.
NOTES:
It� important to note that SAFETY is our prime concern therefore we strongly recommend.
1. TO ALWAYS BEGIN LOADING AT THE RECOMMENDED MINIMUM �START� LOAD and develop loads in 2% increments towards the MAXIMUM load.
2. If possible, measure the velocity and correlate with our data.


Regards
Johan Loubser
Ballistician
Ramshot.Accurate Powders
Tel: 406.234.0422 email: johanramshot.com
WesternPowdersInc.Miles City.Montana.
COMPANY WEBSITES/PRODUCTS:
www.ramshot.com
www.accuratepowder.com
www.montanaxtreme.com
www.blackhorn209.com


The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.